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

Power dissipation in A.C circuit is expressed as:

Question # 2

The power factor of RL series circuit is.

Question # 3

In modulation, low frequency signal is known as

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The unit of impedance is.

Question # 8

In frequency modulation, the amplitude of carrier waves is

Question # 9

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

Question # 10

In LR circiut which one of the following statements is correct?

Question # 11

An in cudutor may store energy in

Question # 12

At high frequency, the current through a capacitor is

Question # 13

Choke consumes extremely small

Question # 14

The combined effect of resistance and reactance is knows as.

Question # 15

The value of capacitive reactance is given by

Question # 16

The effective value of any sinusoidal alternating current or voltage is

Question # 17

Power dissipation is a pure inductive or in a pure capacitance circuit 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 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above
2 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
3 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
4 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
5 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
6 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
7 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
8 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
9 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
10 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times

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