ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction MCQ`s Test

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ECAT Physics Chapter 15 Important MCQ's

Sr.#	Question	Answer
1	A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:	A. The coil is destroyed B. The coil is Rotated C. The coil is neither destroyed nor rotated D. Both (A) and (B)
2	Referring to above figure, current in coil P falls from its maximum value to zero	A. At the instant the switch is closed B. At the instant the switch is opened C. When switch is kept open D. When switch is kept closed
3	The law of electromagnetic induction is related to:	A. Coulomb B. Ampere C. Faraday D. Lenz
4	Referring to above figure, due to change in current in the coil P, the change in magnetic flux	A. Is associated with coil P B. Is associated with coil S C. Causes and induced current in coil S D. All of these
5	The induced emf in a coil is proportional to:	A. Magnetic flux through a coil B. Rate of change of magnetic flux through the coil C. Area of the coil D. Product of magnetic flux and area of the coil
6	Self inducede e.m.f. is also called	A. Motional e.m.f. B. Thermistor C. Electrostatic induction D. Back e.m.f
7	The phenomenon of generation of induced emf is called	A. Electrostatic induction B. Magnetic induction C. Electromagnetic induction D. Electric induction
8	An emf is set up in a conductor when it:	A. Is kept in a magnetic field B. Is kept in an electric field C. Moves across a magnetic field D. Both A and B
9	In magnet-coil experiment, emf can be produced by	A. Keeping the coil stationary and moving the magnet B. Keeping the magnet stationary and moving C. Relative motion of the loop and magnet D. Any one of above
10	The work is stored in the inductor as	A. Electric potential energy B. Elastic potential energy C. Magnetic energy D. Absolute potential energy

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ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

The induced current is a conductor depends upon:

Lenz's law is the consequence of

The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called

Which of the following is most suitable as the core of transformer

Eddy current is produced when:

The law of electromagnetic induction is related to:

When a conductor moved with its length parallel to the lines of magnetic fled:

A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:

The unit of induced emf is:

Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:

Referring to above figure, current in coil P falls from its maximum value to zero

Back emf is produced due to

An emf is set up in a conductor when it

Referring to above figure, a changing current in coil P can be produced:

The current produced by moving a loop of wire across a magnetic field is called

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Top Scorers Of Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction MCQ`s Test

ECAT Physics Chapter 15 Important MCQ's

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A metal road of length 1m is moving at a speed of 1 ms^-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is: