12th class Physics chapter 15 online mcq test with answers for ICS part 2 Physics Chapter 15 (Electromagnetic Induction)

2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

This online test contains MCQs about following topics:

- Induced EMF and Induced Current
- Motional EMF
- Faraday's Law and Induced EMF
- Lenz's Law and Direction of Induced EMF
- Mutual Induction
- Self Induction
- Energy Stored in an Inductor
- Alternating Current Generator
- D.C. Generator
- Back Motor Effect in Generator
- D.C. Motor
- Back EMF Effect in Motors
- Transformer

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Ics Part 2 Physics Chapter 15 Test

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2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

Sr. #	Questions	Answers Choice
1	If magnetic field is doubled then magnetic energy density becomes.	A. Four times B. Two times C. Three times D. Six times
2	When back emf in motor is zero, it draws.	A. Zero current B. Minimum current C. Maximum current D. Steady current
3	A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.	A. 0.1 J B. 10 J C. 100 J D. 1000 J
4	If a step up transformer were 100% efficient the primary and secondary winging's would have the same.	A. Current B. Power C. Voltage D. Direction of winding
5	The direction of induced current is always so as to oppose the change which causes the current is:	A. Faraday's law B. Lenz's  law C. Ohm's law D. Kirchhoff's 1st rule
6	The emf induced by the motion of a conductor across a magnetic field is called:	A. Motional emf B. Rotational emf C. Induced emf D. All of above
7	A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.	A. 50 B. 100 C. 150 D. 200
8	Eddy current is one cause energy loss in	A. A.C. generator B. Transformer C. D.C. motor D. D.C. generator
9	The induced emf in a coil is proportional to:	A. Magnetic flux through the coil B. Rate of change of Magnetic flux through the coil C. Area of the coil D. Product of magnetic flux flux and area of the coil
10	The magnitude of motional emf is given by	A. B. C. D.

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