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 unit of impedance is

Question # 2

The inductive reactance of a coil is direction proportional to.

Question # 3

The circuit which compares the two voltages is.

Question # 4

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

Question # 5

A capacitor is perfectly insulator for:

Question # 6

X1is low for low frequency Fy but Xc is.

Question # 7

The device which allows only the continuous flow of AC through it is.

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

In frequency modulation which factor changed.

Question # 12

Resistance of choke is

Question # 13

The condition of resonance is:

Question # 14

XL=

Question # 15

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

Question # 16

Power dissipation in A.C circuit is expressed as:

Question # 17

A resistance frequency the impedance of RLC parallel circuit 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 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
2 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
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 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
5 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
6 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
7 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
8 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
9 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
10 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative

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