Uses Of The Generator Effect (ht Only) (GCSE Physics)

Which action will increase the output voltage of a simple generator for the same magnet and coil geometry?

In an electric guitar pickup the generator effect is used to produce a signal when metal strings vibrate because the vibrating string changes what?

What is the main reason large power stations use many poles on a generator rotor when producing high-frequency AC?

A detector coil placed near a moving metal object can produce an output because eddy currents are induced. These eddy currents are a consequence of which effect?

A hand-cranked torch flashlight that lights an LED when you crank it uses the generator effect to produce current. Which property of the generator mainly determines the voltage produced for a given crank speed?

Which device converts mechanical energy to electrical energy using the generator effect and then supplies alternating current directly to a power grid?

Which vehicle technology uses the generator effect to recover kinetic energy and convert it back into electrical energy during braking?

Why is a commutator used in a DC bicycle dynamo (if it were made to produce DC) instead of slip rings?

Which of the following best describes a practical way to increase the power output of a wind turbine’s generator at a given wind speed?

Why are slip rings used on an AC generator while a commutator is used on a DC generator?

Which of the following best explains why a faster rotation of the turbine in a power station gives a higher electrical output?