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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

Unit of impedance is:

Question # 2

Radio frequency choke is

Question # 3

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 4

The combined effect of resistance and reactance is knows as.

Question # 5

The wave form of alternating voltage is a

Question # 6

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 7

The electromagnetic spectrum contains

Question # 8

In frequency modulation, the amplitude of carrier waves is

Question # 9

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

Question # 10

Electro magnetic waves emitted from radio antenna are.

Question # 11

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 12

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

Question # 13

Resistance of choke is

Question # 14

The value of capacitive reactance is given by

Question # 15

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 16

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

Question # 17

The device which allows only the continuous flow of AC through it 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 RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
2 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
3 In A.C circuit through a capacitor which one is:
A. Current leads voltage by 90
B. Current lags behind voltage by 90
C. Both will be in phase
D. None of above 
4 The reactance of inductor depends upon
A. L
D. All of the above
5 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
6 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
7 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
8 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
9 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
10 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2

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