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ECAT Physics Chapter 16 Alternating Current
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 16 Alternating Current
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Question # 1
At resonance frequency the impedance of parallel resonance circuit is
Question # 2
The basic circuit elements of A.C circuit are
Question # 3
The Instantaneous value of alternative current maybe:
Question # 4
During the negative half-cycle of the half-wave rectification, the diode
Question # 5
When the pn-junction is in reversed biased, current flows through the junction due to the
Question # 6
Most OP-AMP operates with
Question # 7
The basic circuit element in D.C. circuit is:
Question # 8
Alternating current is produced by a voltage source which polarity:
Question # 9
When the pn-junction is connected reversed biased, its resistance is of the order of
Question # 10
When a transistor is used as a switch the circuit in which the current is to be switched OFF and ON, is connected between the
Question # 11
The wave form of alternating voltage is the graph between:
Question # 12
To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance
Question # 13
Which of the following diode is used to derive the current in external circuit when light is incident in the circuit
Question # 14
The amplifier which us used to perform mathematical operations electronically is known as
Question # 15
In which of the following components, pn-junction is used
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