When The Magnet Is Kept Stationary In The Coil?

If the magnet is held stationary near, or even inside, the coil,

no current will flow through the coil

. If the magnet is moved, the galvanometer needle will deflect, showing that current is flowing through the coil.

When the coil is kept stationary with respect to the magnet the deflection of the galvanometer drops to zero What do you conclude from this activity?

What will you observe if the magnet is kept stationary Why?

Ans2:- When the magnet is held stationaryin the coil,

there will be a magnetic flux in the coil but it will remain constant

. Since the magnetic flux does not change, there is no induced current in the coil and the galvanometer shows no deflection.

When the coil is kept stationary with respect to the magnet the deflection of the galvanometer is towards?

We see that the galvanometer needle deflects toward the right when the coil is moved towards the north pole of the magnet. Similarly, the needle moves toward the left when the coil is moved away. * When the coil is kept stationary with respect to the magnet, the deflection of the

galvanometer drops to zero

.

What would be the direction of the galvanometer when the coil and the magnet are kept stationary?

When the magnet is held stationary, the galvanometer shows no deflection. When the

north pole

of the magnet is brought towards the coil, the galvanometer shows a sudden deflection indicating that a current is induced in the coil.

What happens when a magnet is pushed into a coil?

Ans: (i) when magnet is pushed near a bar magnet then

it induces current due to electromagnetic induction

. (ii) When the bar magnet is withdrawn from inside the coil of the insulated copper wire again the current is induced in the coil but this time it is in reverse direction.

What will you observe when the magnet is moved into the coil rapidly?

You should notice two things: If the magnet is held stationary near, or even inside, the coil, no current will flow through the coil. If the magnet is moved,

the galvanometer needle will deflect

, showing that current is flowing through the coil.

Why stationary magnet inside the coil does not induce electric current?

Although the stationary magnet might produce a large magnetic field, no EMF can be induced

because the flux through the coil is not changing

. When the magnet moves closer to the coil the flux rapidly increases until the magnet is inside the coil.

What happened to the middle of the galvanometer when the bar magnet is kept stationary with respect to the magnet?

If the magnet is held stationary near, or even inside,

the coil, no current will flow through the coil

. If the magnet is moved, the galvanometer needle will deflect, showing that current is flowing through the coil. If the magnet is held stationary near, or even inside, the coil, no current will flow through the coil.

When the coil of DC generator rotates in the magnetic field is produced in the coil?

D.C generator has split ring commutator instead of slip rings. Split ring commutator: It consists of two semicylindrical brass rings S1 and S2 rigidly attached to the two ends of the armature coil. As the armature coil rotates, the two split rings also rotate about the same axis of rotation.

What happens when you thrust the north pole of the magnet into the coil in the opposite direction?

One end of the coil is a north pole and the other end is a south pole. When the north pole of our magnet is moving towards the left hand end of the coil,

the induced current flows anticlockwise

(as we look at the left hand end). … So the induced current opposes the motion that induced it (from Lenz’s Law).

In which direction will the galvanometer?

Yes, the galvanometer shows the direction of current. When the current flows through the solenoid, there is a deflection in the galvanometer towards

the left

.

When the bar magnet is moved towards one end of the coil what happens to the needle of the galvanometer?

when the bar magnet moves towards a coil it causes

electromagnetic induction

. when the bar magnet moves in and out the galvanometer’s needle shall jump from one end to the other indicating if there is current passing through it. hope it helps you!

Does the galvanometer deflect to the left or the right when?

First we calibrate a galvanometer to detect the presence and the direction of a current. In Fig. 3 when current enters the terminal on the right hand side of the galvanometer, the needle

deflects to the left

.

When a magnet is pushed into a coil of wires connected to a galvanometer then?

(i) (a) When a bar magnet is pushed into the coil of insulated copper wire connected to a galvanometer,

an induced current is set-up in the coil

due to change of magnetic field through it. As a result, galvanometer gives a deflection (say towards left).

What would happen if I move a bar magnet in and out of the coil of copper wire?

With more turns of wire within the coil, the greater the strength of the static magnetic field around it. … By moving this bar magnet “in” and “out” of the coil a current would be induced into the coil by

the physical movement of the magnetic flux inside it

.

What happens to the strength of the magnetic field when this bar magnet is thrust into the coil?

(a) When this bar magnet is thrust into the coil, the strength of

the magnetic field increases in the coil

. The current induced in the coil creates another field, in the opposite direction of the bar magnet’s to oppose the increase.

How can current be induced in a coil?

If a coil is moved rapidly between the two poles of a horseshoe magnet, then an electric current is induced in the coil. If a magnet is moved relative to a coil, an electric current is induced.

By keeping it stationary and rotating a magnet inside it

, the current in the coil can be induced.

When a magnet is moved towards a stationary coil I slowly and II quickly then?

A magnet is moved towards the coil, first quickly and then slowly. The induced e.m.f. produced is: … Larger or smaller depending upon the resistance of the coil.

What is a stationary magnet?

Around a permanent magnet or a wire carrying a steady electric current in one direction, the

magnetic field

is stationary and referred to as a magnetostatic field. At any given point its magnitude and direction remain the same.

Why moving magnet produces an electric current?

Moving

the magnet displaces electrons

. Each incremental change in magnet position causes a corresponding change in the position of electrons in the coil. The ongoing process results in continuous electron movement (flow). Hence an electric current.

What will happen if the bar magnet is placed inside the circular loop and held stationary?

The magnet will lose its magnetic field

.

What change is seen in the galvanometer when the magnet is placed at rest inside the coil?

When the magnet is held at rest, there is

no deflection in the galvanometer

, indicating that no current is produced in the coil. When the north-pole is pulled out from the coil, the deflection of the galvanometer is along the opposite direction, indicating the production of an opposite current.

What happens to the reading in the galvanometer when a current is passed through coil?

Explanation: explanation :- when the key is plugged in the coil C1,

flow of the electric current increase in the coil C1

. due to increase in electric current, increase in magnetic field strength in the coil C1. … when current pass through the galvanometer it gives a deflection but in opposite direction.

What is produced when the generator rotates?

The rotating armature spins inside a stationary magnetic field (stator) to produce

electrical current through copper wiring

. Essentially, the engine drives a rotating shaft that turns the armature and produces electricity – just like hand crank flashlights except on a much larger scale.

How magnetic field is produced in DC generator?

The field is produced by

direct current in field coils or by permanent magnets on the stator

. The output, or armature, windings are placed in slots in the cylindrical iron rotor.

When a bar magnet is moved into the coil will there be a deflection in the voltmeter connected to it *?

When a bar magnet is pushed towards (or away) from the coil connected to a galvanometer, the pointer in the

galvanometer

deflects because of the phenomenon of electromagnetic induction.

When you move the magnet towards the coil as diagram describe what happen inside the coil?

When a magnet is moved into a coil of wire, changing the magnetic field and magnetic flux through the coil,

a voltage will be generated in the coil according to Faraday’s Law

. In the example shown below, when the magnet is moved into the coil the galvanometer deflects to the left in response to the increasing field.

When a magnet is thrust into a coil of wire the coil tends to?

When a magnet is thrust into a coil of wire, the coil tends to:

repel the magnet as it enters

.

When a coil is rotated in a magnetic field the emf induced in it Mcq?

When a coil is rotated in a magnetic field, the emf induced in it? Explanation: When a coil is rotated in a magnetic field, cross sectional area varies due to which the number of flux lines crossing it varies, which causes the emf to vary continuously. So,

e=Bvlsinθ = 0

.

When a bar magnet is moved into the coil will there be a deflection in the voltmeter connected to it?

When a bar magnet is pushed towards ( or away ) from the coil connected to a galvanometer, the pointer in the

galvanometer

deflects.

When a magnet is moved with its N pole towards a closed coil the nearer end of the coil acts as a North Pole B South Pole C positive charge d negative charge?

Ans. The magnetic field lines never intersect each other as an intersection of the field lines means the magnetic field at that point has two directions, which is not possible because the resultant force on a pole (north/south) at any point can only be in one direction. 5.

Why the coil kept in north south direction?

Answer: The coil is not kept north south when current flow through the

coil it start to act like a magnet

and it is the definition of magnet that when any object suspended freely and the object rest in north south direction it is called a magnet.

How will the galvanometer deflect while the magnet is moving into the coil?

If the magnet is moved, the galvanometer needle

will deflect

, showing that current is flowing through the coil. When the magnet is moved one way (say, into the coil), the needle deflects one way; when the magnet is moved the other way (say, out of the coil), the needle deflects the other way.

When the magnet is moved away from the coil it is observed that?

When the magnet is moved away from the coil in above experiment, then (1)

induced current flows through the coil

and galvanometer shows deflection in opposite direction. (2) induced current does not flow through the coil.

What happens to the deflection in the galvanometer when the motion of the magnet stops?

When the magnet is held stationary, the galvanometer shows no deflection. When the north pole of the magnet is brought towards the coil, the galvanometer shows a sudden deflection indicating that

a current is induced in the coil

.

Why does the galvanometer deflect?

The galvanometer shows deflection in

opposite direction because when current flows in opposite direction

.

What is direction of deflection?

A

positive charge, top, moving perpendicularly through a magnetic field

is deflected. The right-hand rule, bottom, predicts the direction in which the positive charge will be deflected. A similar left-hand rule predicts the deflection of negative charges.

How does galvanometer show direction of current?

The

deflection of the galvanometer needle

indicates the presence of current in the coil. The direction of deflection of the needle gives us the direction of flow of current.