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

XL=

Question # 2

The electromagnetic spectrum contains

Question # 3

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

Question # 4

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 5

Direct current can not flow through.

Question # 6

In case of A.C. through resistor V and I are

Question # 7

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

Question # 8

Power dissipation in A.C circuit is expressed as:

Question # 9

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

Question # 10

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

Question # 11

The resonance frequency is given by:

Question # 12

The value of capacitive reactance is given by

Question # 13

In case of capacitor, the unit of reactance is

Question # 14

SI unit of reactance is.

Question # 15

The natural frequency of L.C circuit is equal to

Question # 16

In metal detector, we use.

Question # 17

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

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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 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
2 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
3 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
4 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
5 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
6 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
7 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
8 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
9 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
10 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these

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