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

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 2

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

Question # 3

The inductive reactance of a coil is direction proportional to.

Question # 4

At high frequency, the current through a capacitor is

Question # 5

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

Question # 6

The unit of impedance is.

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The resonance frequency is given by:

Question # 11

In frequency modulation which factor changed.

Question # 12

The reactance is the ratio of

Question # 13

The unit of impedance is

Question # 14

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 15

In A.C circuit of inductor which one is true

Question # 16

At resonance frequency, the impedance of RLC series circuit is.

Question # 17

Power dissipated in a pure inductor 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 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
2 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
3 The highest value reached by the voltage or current in one cycle is called.
A. Peak ot peak value
B. Peak value
C. Instantaneous value
D. Root mean square value
4 Vrms =
A. 0.7V∘
B.
0.07V∘
C. 0.007V∘
D. 0.75V∘
5 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
6 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
7 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
8 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
9 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
10 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor

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