Physics FSC Part 2 Online MCQ's Test With Answers

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Physics FSC Part 2 Online MCQ's Test

Sr. # Questions Answers Choice
1 The magnitude of back emf: Increases with sped of motor Decreases with speed of motor Remains same  None of above
2 Commutator was invented by: William bills William Gates William tells William Sturgeon
3 DC generator by william Sturgeon in: 1894 1961 1834 1961
4 A current generator device converts: Mechanical energy into chemical energy Chemical energy into electrical energy Mechanical energy into electrical energy Both b and c
5 Energy density of an inductor is: UM=1/2μ<sub>∘</sub>/B<sup>2</sup> Um = 2μ<sub>∘</sub>/B UM = 1/2B<sup>2</sup>/μ<sub>∘</sub> Um = 2B<sup>2</sup>/μ<sub>∘</sub>
6 Energy stored in an inductor is: 1/2L<sup>2</sup>I 1/2L<sup>2</sup>/I <sub>1/2LI</sub><sup>2</sup> 1/2LI
7 In self induction A coil is connected in__________ with battery and a rheostat. Parallel Series Both A and B None of above
8 The Si unit of Mutual inductance is: VA<sup>-1</sup>S<sup>-1</sup> VAS<sup>-1</sup> VSA<sup>-1</sup> ASV<sup>-1</sup>
9 If force in the direction of velocity of conductor,  then induced current is directed, Anti clockwise Clock wise At equilibrium None of above
10 Electromagnetic induction is exactly according to law of: Momentum Charge Energy Mass
11 The Direction of induced current is always so as to oppose the change which causes the current, is: Faraday's law Lenz's law Ohm's law Kirchhoff' s1ast rule
12 The direction of induced current is always so as to oppose the change which causes the current is: Faraday's law Lenz's &nbsp;law Ohm's law Kirchhoff's 1st rule
13 The  Lenz's law is also statement of: Law of conservation of mass Law of conservation of charge Law of conservation of energy Law of conservation of momentum
14 Lenz's law was given by Heinrich lenz in: 1894 1904 1854 1834
15 The emf induced by the motion of a conductor across a magnetic field is called: Motional emf Rotational emf Induced emf All of above
16 The movement of conductor in magnetic field produces electrical current was discovered in: 1931 1731 1842 1831
17 The current induced can be increased by: Using a stronger magnetic field Moving the loop faster Replacing the loop bay coi of many turns All of above
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