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

In A.C circuit of inductor which one is true

Question # 2

In AC system we generate sine wave form because:

Question # 3

The reactance of inductor depends upon

Question # 4

The circuit which compares the two voltages is.

Question # 5

In modulation, low frequency signal is known as

Question # 6

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

Question # 7

The resonance frequency is given by:

Question # 8

The circuit in which current and voltage are in phase, the power factor is:

Question # 9

During each cycle A.C. voltage reaches a peak value.

Question # 10

The sum of positive and negative peak value called.

Question # 11

In case of capacitor, the unit of reactance is

Question # 12

The main use of A.C is

Question # 13

The phase angle of a series RLC circult at resonant frequency is

Question # 14

The peak to peak value of alternating voltage is

Question # 15

The unit of impedance is.

Question # 16

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

Question # 17

In metal detector, we use.

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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 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
2 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
3 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
4 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
5 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
6 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
7 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
8 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 
9 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
10 The reactance of inductor depends upon
A. L
D. All of the above

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