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

The wave form of alternating voltage is a

Question # 2

For electromagnetic waves, Maxwell generalized

Question # 3

An in cudutor may store energy in

Question # 4

The natural frequency of L.C circuit is equal to

Question # 5

The flow of D.C current is opposed by

Question # 6

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

Question # 7

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 8

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

Question # 9

The AC system is preferred to DC system because:

Question # 10

Electro magnetic waves emitted from radio antenna are.

Question # 11

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

Question # 12

The expression P = VI hold only when current and voltage are.

Question # 13

At resonance, the behavior of R-L-C series circuit is.

Question # 14

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

Question # 15

Direct current can not flow through.

Question # 16

Vrms =

Question # 17

The internal resistance of a capacitor is called:

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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 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
2 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
3 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
4 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
5 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
6 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
7 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
8 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
9 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
10 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above

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