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

At high frequency, the current through a capacitor is

Question # 2

Resistance of choke is

Question # 3

Electro magnetic waves emitted from radio antenna are.

Question # 4

Vrms =

Question # 5

The phase angle of a series RLC circult at resonant frequency is

Question # 6

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

Question # 7

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

Question # 8

XL=

Question # 9

Main reason for world wide use of A.C. is

Question # 10

In frequency modulation which factor changed.

Question # 11

SI unit of reactance is.

Question # 12

The expression P = VI hold only when current and voltage are.

Question # 13

The resonance frequency is given by:

Question # 14

In A.C circuit of inductor which one is true

Question # 15

X1is low for low frequency Fy but Xc is.

Question # 16

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

Question # 17

In Series resonance circuit the impedance of circuit art resonance frequency, 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 phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
2 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
3 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
4 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
5 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
6 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
7 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
8 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
9 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
10 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm

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