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

The unit of impedance is

Question # 2

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 3

The slope of q-t curve at any instant of time gives.

Question # 4

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

Question # 5

The wave form of alternating voltage is a

Question # 6

In a pure inductive A.C. circuit the current.

Question # 7

The basic circuit element in A.C. circuit which controls current.

Question # 8

In case of capacitor, the unit of reactance is

Question # 9

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 10

The peak value of A.C source is 20 A, then its rms value will be.

Question # 11

For electromagnetic waves, Maxwell generalized

Question # 12

The mean value of A.C. in a cycle is.

Question # 13

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

Question # 14

The value of capacitive reactance is given by

Question # 15

The phase difference between the current and voltage at resonce is:

Question # 16

In modulation, low frequency signal is known as

Question # 17

In metal detector, we use.

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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 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
2 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
3 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
4 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
5 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
6 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
7 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
8 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
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 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit

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