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

Question # 2

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

Question # 3

The inductive reactance of a coil is direction proportional to.

Question # 4

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

Question # 5

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 6

Choke consumes extremely small

Question # 7

Radio frequency choke is

Question # 8

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 9

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 10

XL=

Question # 11

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

Question # 12

In chopke coil the resistance XL an resistance R are:

Question # 13

In frequency modulation which factor changed.

Question # 14

The reactance of inductor depends upon

Question # 15

The natural frequency of L.C circuit is equal to

Question # 16

In modulation, low frequency signal is known as

Question # 17

when an inductor comes close to a metallic object, its inductance 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 resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
2 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
3 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
4 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
5 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
6 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
7 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
8 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
9 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
10 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large

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