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

Electro magnetic waves emitted from radio antenna are.

Question # 2

The reactance is the ratio of

Question # 3

The natural frequency of L.C circuit is equal to

Question # 4

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

Question # 5

The wave form of alternating voltage is a

Question # 6

The internal resistance of a capacitor is called:

Question # 7

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

Question # 8

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

Question # 9

The inductive reactance of a coil is direction proportional to.

Question # 10

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 11

Choke consumes extremely small

Question # 12

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

Question # 13

An in cudutor may store energy in

Question # 14

The circuit which compares the two voltages is.

Question # 15

SI unit of reactance is.

Question # 16

In case of capacitor, the unit of reactance is

Question # 17

The combined effect of resistance and reactance is knows as.

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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 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law
2 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
3 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
4 The main use of A.C is
A. Minimum line losses
B. Long distance transmission
C. Stepping up to required voltage only
D. Steeping down to required voltage only
5 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
6 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
7 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
8 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
9 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
10 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit

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