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

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Question # 1

The peak to peak value of alternating voltage is

Question # 2

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

Question # 3

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

Question # 4

The unit of impedance is.

Question # 5

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

Question # 6

Impedance is denoted by:

Question # 7

At high frequency, the current through a capacitor is

Question # 8

For electromagnetic waves, Maxwell generalized

Question # 9

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

Question # 10

X1is low for low frequency Fy but Xc is.

Question # 11

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 12

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

Question # 13

The highest value reached by the voltage or current in one cycle is called.

Question # 14

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

Question # 15

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 16

In AC system we generate sine wave form because:

Question # 17

The inductive reactance of a coil is direction proportional to.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
2 The reactance of inductor depends upon
A. L
D. All of the above
3 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
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 The highest value reached by the voltage or current is one cycle is called:
A. Peak to peak value
B. Peak value
C.
Instantaneous value
D. Root mean square value
6 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
7 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
8 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
9 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
10 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1

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