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

SI unit of reactance is.

Question # 2

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

Question # 3

Radio frequency choke is

Question # 4

The electromagnetic spectrum contains

Question # 5

In frequency modulation, the amplitude of carrier waves is

Question # 6

The combined effect of resistance and reactance in circuit is called:

Question # 7

The combined effect of resistance and reactance is knows as.

Question # 8

The reactance of inductor depends upon

Question # 9

Which consumes small power.

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The device which allows only the flow of D.C. is.

Question # 14

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

Question # 15

In metal detector, we use.

Question # 16

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

Question # 17

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

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16th Chapter

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 phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
2 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
3 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
4 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
5 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
6 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
7 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
8 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
9 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
10 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

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