Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 2

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

Question # 3

The effective value of any sinusoidal alternating current or voltage is

Question # 4

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 5

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

Question # 6

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 7

At resonance, the behavior of R-L-C series circuit is.

Question # 8

At high frequency the value of reactance of capacitor will be.

Question # 9

In AC system we generate sine wave form because:

Question # 10

The inductive reactance of a coil is direction proportional to.

Question # 11

An A.C. voltmeter reads 220 V, its peak value will be

Question # 12

In metal detector, we use.

Question # 13

The most common source of an A.C. Voltage is.

Question # 14

The electromagnetic spectrum contains

Question # 15

The A.M. transmission frequencies range from

Question # 16

During each cycle A.C. voltage reaches a peak value.

Question # 17

X1is low for low frequency Fy but Xc is.

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FSC 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 In A.C circuit through a capacitor which one is:
A. Current leads voltage by 90
B. Current lags behind voltage by 90
C. Both will be in phase
D. None of above 
2 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
3 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above
4 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
5 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
6 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
7 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
8 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
9 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
10 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite

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