When a conductor is moved through a magnetic field, a current is induced in the conductor. Fleming's right-hand rule shows the relative directions of movement, field and current. Write down which quantity is represented by thumb?
Important Questions on Electromagnetic Induction
Copy and complete the following sentences, filling the gaps with suitable words.
A transformer has three parts, the _____ coil, the _____ and the _____ coil.
A student holds a bent piece of wire in a horizontal magnetic field, as shown. She moves the wire downwards through the field, and then upwards.
Explain why an e.m.f. is induced between the ends of the wire.
A student holds a bent piece of wire in a horizontal magnetic field, as shown. She moves the wire downwards through the field, and then upwards.
How will the e.m.f. differ between moving the wire downwards and moving it upwards?
A student holds a bent piece of wire in a horizontal magnetic field, as shown. She moves the wire downwards through the field, and then upwards.
Suggest how she could move the wire to induce a bigger e.m.f. across its ends.
