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Online Tests
Ics Part 2 Physics Chapter 5 Test Online MCQs With Answers
Question # 1
The device which allows only the flow of D.C. is.
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Capacitors
transformer
Inductor
Generator
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Question # 2
The unit of impedance is.
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Henry
Hertz
Ampere
Ohm
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Question # 3
Direct current can not flow through.
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Inductor
Resistor
Transistor
Capacitor
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Question # 4
In RLC circuit the energy is dissipated in
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R only
R and L
R and C
L and C
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Question # 5
Unit of impedance is:
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Ohm
Ohm
-1
no unit
Ohm m
-1
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Question # 6
If V
rms
be the root mean square value of emf then its peak to peak value is given by
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Question # 7
The mean value of A.C. in a cycle is.
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1
0
I2
Nil
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Question # 8
An alternating quantity (voltage or current) is completely known if we know its:
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Maximum
Frequency and phase
Effective value
Both (a) & (b)
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Question # 9
High frequency radio wave is called as
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Fluctuate
Carrier wave
Matter wave
Mechanical wave
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Question # 10
If I
o
is the peak value of current, then its root mean square value is given by
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2 I
o
I
o
0.7 I
o
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Question # 11
Electron vibrating 94,000 times each second will produce radio waves of frequency.
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94 Hz
940 HZ
94 Hz
490 Hz
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Question # 12
In A.C circuit through a capacitor which one is:
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Current leads voltage by 90
∘
Current lags behind voltage by 90
∘
Both will be in phase
None of above
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Question # 13
During each cycle A.C. voltage reaches a peak value.
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Once
Twice
Thrice
Four time
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Question # 14
An in cudutor may store energy in
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Its magnetic field
Its coil
Its electric field
A neighboring circuit
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Question # 15
Impedance is denoted by:
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A
Z
P
Q
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Question # 16
The circuit which compares the two voltages is.
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LDR
Sensor
Comparator
Logic gate
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Question # 17
The combined effect of resistance and reactance is knows as.
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Inductance
Conductance
Resistance
Impedance
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Question # 18
Power dissipation is a pure inductive or in a pure capacitance circuit is:
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10
6
0
10
∘
Maximum
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