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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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In LR circiut which one of the following statements is correct?

Question # 2

The unit of impedance is.

Question # 3

Vrms =

Question # 4

In RLC circuit the energy is dissipated in

Question # 5

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 6

Impedance is denoted by:

Question # 7

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 8

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

Question # 9

A resistance frequency the impedance of RLC parallel circuit is.

Question # 10

The peak value of A.C source is 20 A, then its rms value will be.

Question # 11

The phase difference between current and voltage in an inductive circuit is.

Question # 12

In A.C circuit of inductor which one is true

Question # 13

The AC system is preferred to DC system because:

Question # 14

Phase difference between V and I of an A.C through resistor is.

Question # 15

Direct current can not flow through.

Question # 16

Main reason for world wide use of A.C. is

Question # 17

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

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FSC Part 2 Physics Chapter 16 Online Test MCQ's

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FSc Part II Class Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
2 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above
3 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
4 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
5 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
6 The peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A
7 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
8 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
9 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
10 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil

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