Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test"

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

The highest value reached by the voltage or current in one cycle is called.

Question # 2

The device which allows only the flow of D.C. is.

Question # 3

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 4

The peak to peak value of alternating voltage is

Question # 5

The internal resistance of a capacitor is called:

Question # 6

In AC system we generate sine wave form because:

Question # 7

In case of capacitor, the unit of reactance is

Question # 8

The reactance of inductor depends upon

Question # 9

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 10

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 11

The mean value of A.C. in a cycle is.

Question # 12

In chopke coil the resistance XL an resistance R are:

Question # 13

The resonance frequency is given by:

Question # 14

when an inductor comes close to a metallic object, its inductance is.

Question # 15

The inductive reactance of a coil is direction proportional to.

Question # 16

X1is low for low frequency Fy but Xc is.

Question # 17

SI unit of reactance is.

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FSC Part 2 Physics Chapter 16 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
2 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
3 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
4 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
5 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
6 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
7 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
8 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
9 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
10 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry

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