Electromagnetic Induction Questions and Answers PDF for test preparation. Includes MCQs on electromagnetic induction, available in PDF format for MDCAT and other exams. Electromagnetism MCQs with answers PDF and online test options are also provided.
What does emf stand for ?
A. Electromagnetic force
B. Electromated force
C. Electronic magnetic force
D. Electromotive forceWhat is emf ?
A. Voltage
B. Flux
C. Force
D. CurrentAn E.M.F. can be induced by ____.
A. Change in the area of cross section only
B. Change in angle between magnetic field and area only
C. Change in the magnetic field, area or angle between them
D. Change in the magnetic field onlyThe total number of magnetic field lines passing through an area is termed as ?
A. Magnetic flux
B. Magnetic flux density
C. Voltage
D. EMFWhat is the consequence of motor effect ?
A. Voltage
B. EMF
C. Current
D. Electromagnetic inductionWhat happens to the current in a coil while accelerating a magnet inside it ?
A. Reverses
B. Increases
C. Decreases
D. Remains constantIdentify the law used to find the direction of eddy currents.
A. Ampere’s law
B. Faraday’s law
C. Maxwell’s law
D. Lenz’s lawWhich of the following is found using Lenz’s law ?
A. The direction of induced emf
B. The direction of alternating current
C. Induced emf
D. Induced currentHow can electromagnetic damping be increased ?
A. Increase the temperature of the coil
B. Winding the coil on the aluminum frame
C. Increasing the magnetic density
D. Reduce viscosityIdentify the law which is used to find out the direction of eddy currents.
A. Ampere circuital law
B. Maxwell’s law
C. Lenz’s law
D. Faraday’s law