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Electronics - SS2 Physics Past Questions and Answers - page 3

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Discuss the behaviour of capacitors connected in series and in parallel in an electric circuit. How does the total capacitance change in each configuration? Provide examples to illustrate your explanation.

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Which of the following statements accurately describes a transistor?

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A device that amplifies electrical signals

A device that stores electrical energy

A device that converts electrical energy into mechanical energy

A device that generates electrical energy

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Which type of transistor has two pn junctions and is commonly used for amplification and switching applications?

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Bipolar junction transistor (BJT)

Field-effect transistor (FET)

Darlington transistor

Schottky transistor

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In a common-emitter configuration, the input is applied to the _______ and the output is taken from the _______.

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Base, collector

Collector, emitter

Emitter, base

Base, emitter

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Which of the following is a key characteristic of a MOSFET (metal-oxide-semiconductor field-effect transistor)?

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It has a high input impedance

It is controlled by current, not voltage

It has three terminals: source, gate, and drain

It is primarily used for power amplification

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Which of the following is an application of a transistor?

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Digital logic circuits

Power generation

Lighting fixtures

Household appliances

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Which transistor configuration provides a high voltage gain and a phase inversion between the input and output signals?

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Common-emitter

Common-base

Common-collector

Emitter-follower

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Which of the following is NOT a type of transistor biassing?

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Base bias

Collector feedback bias

Emitter bias

Current mirror bias

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Which of the following statements is true regarding the cutoff region of a transistor?

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No current flows between the collector and the emitter

The transistor operates in its active region

The transistor is fully saturated

The transistor is turned off and acts as an open circuit

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Which type of transistor is known for its high switching speed and low power consumption?

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Darlington transistor

Bipolar junction transistor (BJT)

Field-effect transistor (FET)

Schottky transistor

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