ECAT Pre General Science Chapter 14 online mcq test with answers for Physics chapter 14 (Electromagnetism)

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ECAT Physics Chapter 14 Important MCQ's

Sr.#	Question	Answer
1	The SI unit of magnetic permeability is	A. WB A^-1m^-1 B. WB mA^-1 C. WB Am^-1 D. None of these
2	How many number of anodes used in electron gun	A. one B. two C. three D. six
3	A field is uniform and much stronger:	A. Inside a long solenoid B. Outside a long solenoid C. At the end of a long solenoid D. At the central point of long solenoid
4	When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be	A. changed B. zero C. unchanged D. none of these
5	At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:	A. -y direction B. +y direction C. +z direction D. -z direction
6	A solenoid is a coil of wire which is:	A. Short, loosely wound, cylindrical B. Long, tightly wound, spherical C. Long, loosely wound, cylindrical D. Long, tightly wound, cylindrical
7	The torque per unit twist of coil is called	A. proportionality constant B. gravitational constant C. boltzman constant D. coupling constant
8	In the expression of force experienced by electron, the direction of both v and B are	A. parallel B. zero C. perpendicular D. none of them
9	The CRO is used for displaying the waveform of a given	A. current B. voltage C. both of them D. none of them
10	Magnetic induction is also called as:	A. Ampere’s law B. Faraday’s law C. Lenz’s law D. Newton’s law

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