2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

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

Question # 2

The reactance of inductor depends upon

Question # 3

The phase angle of a series RLC circult at resonant frequency is

Question # 4

The value of capacitive reactance is given by

Question # 5

At resonance frequency, the impedance of RLC series circuit is.

Question # 6

In modulation, low frequency signal is known as

Question # 7

In case of A.C. through resistor V and I are

Question # 8

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

Question # 9

The condition of resonance is:

Question # 10

At high frequency the value of reactance of capacitor will be.

Question # 11

Impedance is denoted by:

Question # 12

An alternating quantity (voltage or current) is completely known if we know its:

Question # 13

X1is low for low frequency Fy but Xc is.

Question # 14

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 15

The wave form of alternating voltage is a

Question # 16

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

Question # 17

The peak to peak value of alternating voltage is

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ICS 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 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
2 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
3 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
4 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
5 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
6 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
7 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
8 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
9 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
10 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other

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