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 condition of resonance is:

Question # 2

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

Question # 3

SI unit of reactance is.

Question # 4

The combined effect of resistance and reactance is knows as.

Question # 5

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 6

In frequency modulation which factor changed.

Question # 7

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

Question # 8

In three phase A.C supply coils are inclined at an angle of.

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The reactance is the ratio of

Question # 13

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

Question # 14

An in cudutor may store energy in

Question # 15

The peak to peak value of alternating voltage is

Question # 16

High frequency radio wave is called as

Question # 17

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?

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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 electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
2 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
3 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
4 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
5 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
6 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
7 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
8 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
9 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
10 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite

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