2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 16 Online MCQ's Test"

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

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

Question # 2

Choke consumes extremely small

Question # 3

X1is low for low frequency Fy but Xc is.

Question # 4

The AC system is preferred to DC system because:

Question # 5

Average value of current and voltage over a complete cycle is.

Question # 6

The device which allows only the flow of D.C. is.

Question # 7

If Io is the peak value of current, then its root mean square value is given by

Question # 8

In frequency modulation, the amplitude of carrier waves is

Question # 9

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

Question # 10

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

Question # 11

The circuit which compares the two voltages is.

Question # 12

The inductive reactance of a coil is direction proportional to.

Question # 13

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

Question # 14

In RLC circuit the energy is dissipated in

Question # 15

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

Question # 16

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

Question # 17

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

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ICS 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 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
2 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
3 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
4 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
5 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
6 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
7 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
8 In pure capacitor A.C. circuit, the current I and charge q are.
A. In phase
B. Out of phase
C. Parallel to each other
D. None of above
9 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
10 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero

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