Learn electromagnetism MCQs, grade 10 physics test 15 for online learning courses and test prep. Transformer multiple choice questions (MCQs), electromagnetism quiz questions and answers include physics worksheets for online physics tutor courses distance learning.

Physics multiple choice questions (MCQ): to increase or decrease ac voltages, we use with options circuit breaker, fuse, transformer and generator, transformer quiz for online teacher certification preparation with online training questions and answers. Free physics study guide to learn transformer quiz to attempt multiple choice questions based test.

MCQ: To increase or decrease AC voltages, we use

1. fuse
2. circuit breaker
3. transformer
4. generator

C

MCQ: Magnitude of induced e.m.f in a circuit depends on

1. speed of relative motion of coil
2. speed of relative motion of magnet
3. number of turns of the coil
4. all of the above

D

MCQ: Value of induced EMF is directly proportional to

1. current through coil
2. voltage applied
3. no. of field lines
4. resistivity

C

MCQ: When surface is held parallel to magnetic lines of force, number of lines of force is

1. negative
2. zero
3. maximum
4. minimum

D

MCQ: Number of magnetic lines of force passing through any surface is called

1. nature of magnetic field
2. strength of magnetic field
3. work of magnetic field
4. weakness of magnetic field

B