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

X1is low for low frequency Fy but Xc is.

Question # 2

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 3

XL=

Question # 4

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

Question # 5

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

Question # 6

SI unit of reactance is.

Question # 7

Radio frequency choke is

Question # 8

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

Question # 9

At high frequency, the current through a capacitor is

Question # 10

The basic circuit element in A.C. circuit which controls current.

Question # 11

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

Question # 12

Direct current can not flow through.

Question # 13

Impedance is denoted by:

Question # 14

The sum of positive and negative peak value called.

Question # 15

The natural frequency of L.C circuit is equal to

Question # 16

Resistance of choke is

Question # 17

The reactance is the ratio of

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
2 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
3 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
4 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other
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 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
7 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
8 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
9 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
10 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

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