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

A resistance frequency the impedance of RLC parallel circuit is.

Question # 2

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 3

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?

Question # 4

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

Question # 5

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

Question # 6

In frequency modulation which factor changed.

Question # 7

High frequency radio wave is called as

Question # 8

X1is low for low frequency Fy but Xc is.

Question # 9

A capacitor is perfectly insulator for:

Question # 10

The effective value of any sinusoidal alternating current or voltage is

Question # 11

The phase difference between the current and voltage at resonce is:

Question # 12

The combined effect of resistance and reactance in circuit is called:

Question # 13

Average value of current and voltage over a complete cycle is.

Question # 14

In A.C circuit through a capacitor which one is:

Question # 15

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

Question # 16

The inductive reactance of a coil is direction proportional to.

Question # 17

At high frequency, the current through a capacitor is

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
2 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
3 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
4 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
5 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
6 In pure capacitor A.C. circuit, the current I and charge q are.
A. In phase
B. Out of phase
C. Parallel to each other
D. None of above
7 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
8 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
9 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
10 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance

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