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 For step down transformer Ns>Np Np > Ns Ns = Np Ns > > > Np
2 Step up transformer is used. Step up D.C. voltage Step up A.C. voltage Step up both A.C and D.C. Step up A.C. current
3 Transformer is used to change Electric power Magnetic field Alternating voltage Phase of A.C.
4 The application of mutual induction is a. D.C. motor Radio Television Transformer
5 the core of transformer is laminated so reduce. Magnetic loss Hysteresis loss Eddy current loss Electric loss
6 The working principle of transformer is. Self induction Faraday's law Mutual induction Electromagnetic induction
7 When back emf in motor is zero, it draws. Zero current Minimum current Maximum current Steady current
8 When motor is just started, back emf is almost. Maximum Zero Minimum Infinite
9 With the speed of motor, magnitude of back emf Remain same Increase Decrease First increases then decreases
10 When the back emf is zero, its draws. Zero current Minimum current Maximum current Steady current
11 When a motor is over loaded then the magnitude of back emf. Increases Decreases Remain constant Zero
12 Output of D.C. motor is A.C. energy Mechanical energy Chemical energy D.C. energy
13 The jerks in D.C. motor are created by the use of. Armature Commutators Split rings Source of emf
14 split rings are used in A.C. generator A.C. motor Transformer D.C. motor
15 The winding of the electromagnet in motor are usually called. Magnetic coils Field coils Electric coils electric o electric coils
16 Which of the following converts electrical energy into mechanical energy. Transformer A.C. generator D.C. generator D.C. motor
17 The device in the circuit that consume electrical energy are known as. Dissipaters Generator Load Motors
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