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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 2

Direct current can not flow through.

Question # 3

Unit of impedance is:

Question # 4

Power dissipated in a pure inductor is.

Question # 5

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

Question # 6

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

Question # 7

The condition of resonance is:

Question # 8

In A.C circuit of inductor which one is true

Question # 9

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

Question # 10

The wave form of alternating voltage is a

Question # 11

The flow of D.C current is opposed by

Question # 12

The effective value of any sinusoidal alternating current or voltage is

Question # 13

The main use of A.C is

Question # 14

The reactance of inductor depends upon

Question # 15

Xc =

Question # 16

The A.M. transmission frequencies range from

Question # 17

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

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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 electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
2 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
3 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
4 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
5 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
6 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
7 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
8 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 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

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