Bring spare compasses. Undamped compasses work best for this demo. Place compasses at various locations in and around the solenoid. Press and hold the power supply button to activate current. Observe ...

The strength of the magnetic field around a wire is greatest closest to it. Fleming's left hand rule shows that changing the direction of the current in a straight wire or a solenoid reverses the ...

The field inside a solenoid is strong and uniform. The small magnetic field caused by the ... Point the fingers of your right hand in the same direction as the current is flowing in the coil.

If the solenoid in Exercise 5.5 is free to turn about the vertical direction and a uniform horizontal magnetic field of 0.25 T is applied, what is the magnitude of torque on the solenoid when its ...