Answer Posted / joseph p. v.

Passive Electronic Devices include Resistors, Capacitors,
and Inductors which modify the current in the circuit and
have a fixed function value. Eg a 10k resistor has the same
value throughout its use.

Active Electronic Devices inlcude 1N, 2N, and 3N
semiconductor diodes transistors and SCR which modify and
control current in a circuit by way of changing
electrostatic forces in the device. The diode has an
electrostatic field in the junction that allows current to
flow in only one direction. The transistor has an
electrostatic field that can be biased so that it can switch
on or off the current or control it. The SCR can control AC
current.

Describe the difference between p-type and n-type semiconductor materials.

1197

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2016

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Why common-collector circuit is known as an emitter follower?

1147

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What is potential transformers?

1222

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Explain the working of fir filters?

1076

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What are ‘emitter injection efficiently’ and ‘base transport factor’ and how do they influence the transistor operation?

1153

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3331

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i have been filled the form of AIRPORT AUTHORITY OF INDIA for ATC & ELECTRONICS but this is may i did'nt got exam date .when it will conduct.

2003

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define flyback converter.

1166

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Explain the difference between masking and non-masking?

1146

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The loss of precision in quantity is called A Down time B Delay C Unavoidable delay D None of these

2054

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What is parallel to serial conversion?

1159

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what is the difference between isdn and idn?

8580

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What is a multivibrator?

1167

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State the kirchoff`s laws.

1084

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