What happens when a current carrying coil is placed in a uniform magnetic field?
It gets deflected since magnetic lines of force are perpendicular to the length of the coil
.
What happen when a rectangular coil carrying current is placed in a uniform magnetic field?
A rectangular coil carrying current is placed in a uniform magnetic field in such a way that
normal to the coil makes an angle theta with the direction of magnetic flux density
.
Why does a rectangular coil carrying current rotate in a magnetic field?
When a current passes through the rectangular coil kept between a pair of opp. magnetic poles. The current through the coil under the magnetic field
generates equal and opp, forces perpaqndicular to the wire on opposite sides
. … forces constitutes a couple that makes the coil rotate.
When a current carrying coil is placed in a uniform magnetic field it experiences a torque?
The torque produced in a conducting circular ring
is zero
when it is placed in a uniform magnetic field such that the magnetic field is perpendicular to the plane of loop.
When a current carrying coil is placed in a uniform?
When a current carrying coil is placed in a uniform magnetic field of induction B, then
a torque τ acts on it
. If I is the current, n is the number of turns and A is the face area of the coil and the normal to the coil makes an angle θ with B, Then.
When a current carrying coil is placed in the magnetic field * 1 point?
Answer Expert Verified
If a current carrying conductor is placed in a magnetic field, it
experiences the Lorentz force
(unless the angle between the flow of current and magnetc lines is 0°).
Why does a coil with current inside a magnetic field start to turn?
The coil of wire is mounted in the gap between the two magnets. The split rings make electrical contact with the coil and reverse the current every half turn. When an
electric current flows through the coil, a force is exerted on the coil
, causing it to spin.
Does a current carrying coil produce uniform magnetic field?
No, magnetic field produced due to a current carrying cirular coil
is not uniform
.
What happened to the magnetic field at the Centre of a circular current carrying coil if we double the radius of the coil keeping the current unchanged?
Hence, if we double the radius, the magnetic field at the centre of the
coil will become half its original value
.
When you immerse a current carrying coil in a magnetic field is there a net force on the coil?
The loop carries a current I, has N turns, each of area A, and the perpendicular to the loop makes an angle θ with the field B. The
net force on the loop is zero
.
When plane of coil is parallel to magnetic field torque acting on the coil will be?
When , that is when normal to the plane of loop and magnetic field are parallel to each other, torque acting on the loop
becomes zero
.
What is the force between two parallel conductors?
The force between two long parallel conductors separated by distance r, is.
F=2πrμ0(i1)
(i2)l.
How can magnets affect motion?
And moving charges are affected by magnets. Stationary charges, on the other hand, do not produce magnetic fields, and are not affected by magnets. Two wires, with current flowing, when placed next to each other, may attract or repel like two magnets. It all has to do with moving charges.
What happens to a current carrying coil if it is kept in a magnetic field what will happen if polarity of magnet is reversed?
This means when you change the direction of the current, you also change the direction of the magnetic field. … Because the magnetic field created by the electric current in the wire is changing directions around the wire,
it will repel both poles of the magnet by bending away from the wire
.
When a current carrying coil is placed in the magnetic field Mcq?
As both force and torque on the electric current carrying coil placed in a uniform magnetic field are
directly proportional to sinθ
, so if the coil is in the direction of magnetic induction, then θ = 0. So both force and torque are zero. 02. A conductor is rotating with in a magnetic field.
How does coiling a current carrying wire affect the magnetic field around it?
Electricity and magnetism are linked phenomena.
When you bend the wire into a coil,
the magnetic fields around each loop of the coil add up to make a long , thin magnet with north at one end and south at the other
. The more loops the coil has, the stronger the magnetic field, while the current is flowing.
Why current carrying wire produces magnetic field?
@vamsi kancharla • 10 Oct, 2012 A current carrying conductor, such as a metal wire, will produce a magnetic field around it
because of the motion of charge within the wire itself
. This motion produces or sets up a magnetic field around the wire in the form of concentric circles.
How does a current carrying coil behave like a bar magnet?
A current carrying coil is
a dipole just like the bar magnet
. In a current carrying coil, one end acts as N-pole and the other end acts as S-pole. … Two magnetic lines of force never intersect each other.
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 current carrying coil is suspended in uniform magnetic field it will align itself in a direction?
The plane of coil will orient it self so that area vector aligns itself along the magnetic field. So, the plane will orient
perpendicular to
the magnetic field.
Where the field produced by circular coil is uniform?
Magnetic field due to current through circular loop is uniform
at the centre of the current loop
and non-uniform near the circular coil.
What happens to the magnetic field from a current carrying wire if you double the current?
Current is directly proportional to magnetic force for a straight current carrying conductor in a uniform magnetic field. … If the current is
doubled the force on the conductor will double
. If the current is is reduced to a third of the initial value the force will also reduce to a third of its initial value.
What happens to magnetic field when current is doubled?
The
magnetic field strength will quadruple
.
What happens to the magnetic field when the radius of the loop is doubled at its original value and at the same time current passing through it is also doubled?
Explanation: If we double the radius of a coil keeping the current through it unchanged, then the magnetic field at
any point at a large distance from the centre becomes approximately
.
When a current carrying rectangular loop is placed inside magnetic field net torque on it is always zero True or false?
A current carrying loop is placed in uniform magnetic field as shown in figure. Torque in the loop in this case is
zero
.
Does a current carrying wire placed in a magnetic field always experience a magnetic force?
Moving charges experience a force in a magnetic field. If these moving charges are in a wire—that is, if the wire is carrying a current—
the wire should also experience a force
.
What affects a magnetic field?
Factors that can affect a magnet’s strength include:
Heat
.
Radiation
.
Strong electrical currents in close proximity to the magnet
.
Other magnets
in close proximity to the magnet.
How do magnetic fields work physics?
All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction.
The force generated by the aligned atoms creates a magnetic field
.
At what condition the torque produced on a rectangular coil by magnetic field intensity is maximum?
The torque τ is maximum
when the normal of the loop is perpendicular to the magnetic field
, and zero when the normal is parallel to the field. A coil of wire has an area of 2.0×10-4m2, consists of 100 loops or turns, and contains a current of 0.045 A. The coil is placed in a uniform magnetic field of magnitude 0.15 T.
What is the net magnetic force on a rectangular loop of current?
The net force on a current loop in a uniform magnetic field is
zero
.
What happens in a magnetic field?
Magnetic fields
force moving electrically charged particles in a circular or helical path
. This force—exerted on electric currents in wires in a magnetic field—underlies the operation of electric motors. (For more information about magnetic fields, see magnetism. The use of magnetic fields to generate electric current.
In which position the force acting on the coil of an electric motor is maximum?
The force on a current carrying wire is maximum only when
the wire is perpendicular to the direction of magnetic field
.
In which position the force acting on the coil of an electric motor is I Maximum II minimum?
(i) The deflecting couple acting on the coil is maximum when the plane of the coil is parallel to the direction of magnetic field. (ii) The deflecting couple acting on the coil is minimum
when the plane of the coil is normal to the direction of magnetic field
.
When two current carrying parallel conductors do they attract?
So if you have two current-carrying, parallel wires with magnetic fields circling around them in the same direction,
they will attract each other
, as shown in the tutorial; at the point at which their respective magnetic fields intersect, they are traveling in opposite directions, and opposites attract.
Why do parallel conductors carrying current exert force on each other?
Q3. Why Do Parallel Currents Attract? Ans: When
the flow of the currents is in the same direction, the magnetic field will be opposite and the wires will attract
.
What happens to the force between two parallel current carrying wires?
Thus, when two parallel wires carry current in the same direction, they exert equal and opposite attractive forces on each other. … There
will be no force
, since the currents cancel. There will be an attractive force between the wires. There will be a repulsive force between the wires.
Direct current
is induced in the coil by doing the experiment related to this given figure. Explanation: When a DC current passes through a long straight conductor a magnetising force and a static magnetic field is developed around it.
What happens to the compass when you change the direction of the electric current?
Q6) When the current is switched on through a wire,
a compass needle kept nearby gets deflected from its north-south position
. … When an electric current passes through a wire, it behaves like a magnet. This magnetic effect of the electric current makes the compass needle deflect from the north-south direction.
What will happen when a current pass through the Aluminium rod from end B to end a Explain why?
Pass a current through the aluminium rod from one end to other (B to A).
The rod is displaced towards left
. When the direction of current flowing through the rod is reversed, the displacement of rod is towards right.
