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ECAT Physics Chapter 16 Alternating Current Online Test
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 16 Alternating Current Online Test
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Question # 1
In which of the following diodes when an electron combines with a hole during the forward biasing, photon of visible light is emitted.
Question # 2
Average value of A.C voltage during one cycle is
Question # 3
Alternating current is produced by a voltage source which polarity:
Question # 4
Electromagnetic waves transmit energy equal to
Question # 5
Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
Question # 6
Which of the following has a great concentration of impurity
Question # 7
In which of the following components, pn-junction is used
Question # 8
The power factor of resonant series circuit is
Question # 9
A P-N juction or semiconductor diode cannot be used as
Question # 10
The waveform of alternating voltage is a:
Question # 11
In a transistor, the central region is called
Question # 12
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 13
Nowadays, Most of the electric energy is produced by the A.C. generators using:
Question # 14
The closed loop gain of the non-inverting amplifier is given by
Question # 15
The most common source of alternating voltage is:
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