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

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

Question # 2

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

Question # 3

The main use of A.C is

Question # 4

Unit of impedance is:

Question # 5

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

Question # 6

In AC system we generate sine wave form because:

Question # 7

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

Question # 8

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 9

At high frequency, the current through a capacitor is

Question # 10

The combined effect of resistance and reactance is knows as.

Question # 11

The peak to peak value of alternating voltage is

Question # 12

The unit of impedance is

Question # 13

The A.M. transmission frequencies range from

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

The electromagnetic spectrum contains

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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 Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
2 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
3 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
4 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
5 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
6 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
7 The natural frequency of L.C circuit is equal to
8 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
9 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
10 An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:
A. 50 Hz
B. 25Hz
C. 100 Hz
D. 75 Hz

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