What is the approximate ratio of the number of paper clips picked up by the 50-coil electromagnet? Using the data for the 1.5 V battery based on the above suggestion, this ratio is 13/6 = 2.17 .
How do you calculate the number of turns in an electromagnet?
Where, F = force, i = current, g = length of the gap between the solenoid and a piece of metal, a = Area, n = number of turns in the solenoid, and the magnetic constant = 4 x PI x 10 – 7 . Plug the numbers into the equation to compute the force that will act on the piece of metal.
What is the approximate ratio of the number of paper clips picked up by the 50 coil electromagnet?
What is the approximate ratio of the number of paper clips picked up by the 50-coil electromagnet? Using the data for the 1.5 V battery based on the above suggestion, this ratio is 13/6 = 2.17 .
How many paper clips can an electromagnet pick up with 20 coils?
| Number of turns of wire Number of clips picked up – trial 1 Number of clips picked up – trial 2 | 20 7 8 | 30 11 12 | 40 16 15 | 50 19 19 |
|---|
What happens to the strength of an electromagnet when the number of coils in the solenoid is increased?
Explanation: Increase the current running through the wire coils or solenoid . ... The more times the wire coils in a given length of solenoid, the stronger the electromagnetic field will be.
What does doubling the number of coils do to the strength of the electromagnet?
NOTE: The strength of an electromagnet is directly proportional to not only the current but the number of windings. Doubling the number of windings doubles the strength of the magnet.
How many times stronger than the 1.5 V battery is the 6.0 V battery?
The 6.0 V battery is four times stronger than the 1.5 V battery.
Which coil produces the strongest electromagnet?
The strongest continuous manmade magnetic field, 45 T, was produced by a hybrid device, consisting of a Bitter magnet inside a superconducting magnet . The resistive magnet produces 33.5 T and the superconducting coil produces the remaining 11.5 T.
How does the number of coils affect an electromagnet?
The electromagnet will become stronger if we add more coils because there are more field lines in a loop then there is in a straight piece of wire.
What happens if you hold a nail or paper clip near the coil?
2. Describe what happens if you hold a nail or paper clip near the coil. The object vibrates, or gets pulled into the coil.
Will the electromagnet with 1 or 2 batteries pick up more staples?
In Test 2 (2 batteries), the nail with 20 coils will again likely pick up the greater number of staples because more coils will allow more current to flow and should yield a stronger electromagnet.
Can your electromagnet pick up paper clips when the current is disconnected?
Remove the nail from the coil and test its magnetic properties: see if you can pick up some paper clips with it, for example. If the electromagnet is not strong enough, the nail will not stay magnetized after the battery is disconnected , so to see this effect, use as large a current source as possible.
Which makes an electromagnet stronger?
A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply. You can make an electromagnet stronger by doing these things: wrapping the coil around a piece of iron (such as an iron nail) adding more turns to the coil .
Where is the strongest magnetic field in a coil?
The strongest external magnetic fields are near the poles . A magnetic north pole will attract the south pole of another magnet, and repel a north pole.
Why does coiling a wire increase current flow?
The magnetic field becomes stronger because the magnetic field around a wire is circular and vertical to the wire, but the magnet fields from each of the turns in the coil add together, so the total magnetic field is much stronger.
