ECAT Pre Engineering Physics Chapter 16 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 16 Alternating Current

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 16 Alternating Current

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Physics ECAT Pre Engineering Chapter 16 Alternating Current

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Question # 1

The RMS value of alternating current is:

Question # 2

The magnitude of alternative voltage V:

Question # 3

Which one of the following Electro-magnetic wave have the highest frequency and shortest wave-length

Question # 4

Peak value of alternative current is:

Question # 5

Which of the following diode is used to derive the current in external circuit when light is incident in the circuit

Question # 6

In a transistor, the central region is called

Question # 7

If 250V is the RMS value of alternative voltage, then its peak value Vowill be:

Question # 8

The sum of positive and negative peak values is called:

Question # 9

In half wave rectification

Question # 10

To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance

Question # 11

The time interval during which the Voltage source changes its polarity once is known as:

Question # 12

In RLC series circuit, resonance occurs when

Question # 13

The value of output resistance of OP-AMOP is of the order of

Question # 14

At resonance, the impedance of RLC series circuit is

Question # 15

The device which allows only the flow of an A.C. through a circuit is

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