Electromagnetism questions | form four Physics

(2579) Question Category: Multiple choices

What is the main function of step up transformer?

  1. To change a.c to d.c current
  2. To decrease resistance in a circuit
  3. To increase a.c voltage
  4. To decrease a.c voltage
  5. To increase a.c current.

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(2580) Question Category: Fill in blanks

The rule used to deduce the direction of the magnetic field lines due to solenoid or a
circular coil is called ___________.

Answer / Solution

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(2581) Question Category: Fill in blanks

The function of an induction coil is to produce ____________.

Answer / Solution

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(2583) Question Category: Short answers

What is meant by the terms solenoid and electromagnetic induction?

Answer / Solution

UNSOLVED

(2584) Question Category: Short answers

List down two applications of electromagnetics.

Answer / Solution

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