Other questions in this quiz

2. Which of these is NOT a way to increase the induced voltage in a GENERATOR?

  • turning the magnet/coil faster
  • increase the current through the wires
  • using a magnet with a stronger magnetic field
  • having more turns and an iron core in the coil

3. A voltage is produced when

  • a magnet moves in a coil of wire
  • a magnet touches a coil of wire
  • a soft iron bar moves in a coil of wire

4. In a GENERATOR the slip rings are connected to

  • the coil
  • the magnetic field where the coil spins inside it
  • the external circuit

5. Why do the national grid use transformers to REDUCE THE CURRENT?

  • When a large current flows through a wire lots of energy is lost as heat
  • Large currents cost a lot of money to create
  • When a large current flows through a wire it reduces the speed of transfer of electricity

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Electricity resources »