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

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 2

The flow of D.C current is opposed by

Question # 3

Choke consumes extremely small

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

In Pakistan the frequency of A.C. supply is.

Question # 9

The main reason for world wide use of A.C is because:

Question # 10

The AC system is preferred to DC system because:

Question # 11

Phase difference between V and I of an A.C through resistor is.

Question # 12

The main use of A.C is

Question # 13

The phase difference between current and voltage in an inductive circuit is.

Question # 14

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 15

An in cudutor may store energy in

Question # 16

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

Question # 17

In three phase A.C. generator the phase difference between each pair of coil is.

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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 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
3 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
4 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
5 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
6 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
7 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 
8 The natural frequency of L.C circuit is equal to
9 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
10 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple

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