Chapter 4: Electromagnetism Physics Mcqs for High School - Grade 10


Q.  An electrical switch that opens and closes under the control of another electrical circuit is called

a. fuse
b. relay
c. breaker
d. transformer


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The study of magnetic effects of current is called
Category: Physics MCQs,   Published by: teswesm
MCQs:  As per Faraday's law of electromagnetic induction, the value of induced electromotive force in a circuit is directly proportional to the rate of change of the number of
Category: Physics MCQs,   Published by: teswesm
MCQs:  The direction of induced current always
Category: Physics MCQs,   Published by: teswesm
MCQs:  If a coil is rotated in a magnetic field, there will be induced a
Category: Physics MCQs,   Published by: teswesm
MCQs:  Soft iron can be easily
Category: Physics MCQs,   Published by: teswesm
MCQs:  The direction of the magnetic field is governed by the direction of
Category: Physics MCQs,   Published by: teswesm
MCQs:  An electromagnet is
Category: Physics MCQs,   Published by: teswesm
MCQs:  When the plane of the coil is parallel to the lines of magnetic force, the number of lines of magnetic force passing through the coil will be
Category: Physics MCQs,   Published by: teswesm
MCQs:  In coil, the change in the number of magnetic field lines will induce an
Category: Physics MCQs,   Published by: teswesm
MCQs:  The power is transmitted over long distances and high voltages to
Category: Physics MCQs,   Published by: teswesm
MCQs:  To increase or decrease AC voltages, we use
Category: Physics MCQs,   Published by: teswesm
MCQs:  The magnitude of induced e.m.f in a circuit depends on the
Category: Physics MCQs,   Published by: teswesm
MCQs:  The value of induced Electromotive force (EMF) is directly proportional to
Category: Physics MCQs,   Published by: teswesm
MCQs:  When the surface is held parallel to the magnetic lines of force, the number of lines of force is
Category: Physics MCQs,   Published by: teswesm
MCQs:  The number of magnetic lines of force passing through any surface is called
Category: Physics MCQs,   Published by: teswesm
MCQs:  If the secondary voltage is smaller than the primary voltage, the transformer is called a
Category: Physics MCQs,   Published by: teswesm
MCQs:  A device that converts electric energy into rotational kinetic energy is called
Category: Physics MCQs,   Published by: teswesm
MCQs:  The loop in magnetic field rotates due to
Category: Physics MCQs,   Published by: teswesm
MCQs:  If the coil is placed perpendicular to field lines then the number of lines passing through the coil is
Category: Physics MCQs,   Published by: teswesm
MCQs:  If a transformer is used to supply voltage to a 15 V model train which draws a current of 0.7 A. If the voltage of the A.C source is 210 V, the current in the primary should be
Category: Physics MCQs,   Published by: teswesm