Electronics - SS2 Physics Past Questions and Answers - page 3
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.
Which of the following statements accurately describes a transistor?
A device that amplifies electrical signals
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A device that stores electrical energy
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A device that converts electrical energy into mechanical energy
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A device that generates electrical energy
Which type of transistor has two pn junctions and is commonly used for amplification and switching applications?
Bipolar junction transistor (BJT)
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Field-effect transistor (FET)
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Darlington transistor
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Schottky transistor
In a common-emitter configuration, the input is applied to the _______ and the output is taken from the _______.
Base, collector
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Collector, emitter
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Emitter, base
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Base, emitter
Which of the following is a key characteristic of a MOSFET (metal-oxide-semiconductor field-effect transistor)?
It has a high input impedance
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It is controlled by current, not voltage
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It has three terminals: source, gate, and drain
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It is primarily used for power amplification
Which of the following is an application of a transistor?
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Digital logic circuits
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Power generation
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Lighting fixtures
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Household appliances
Which transistor configuration provides a high voltage gain and a phase inversion between the input and output signals?
Common-emitter
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Common-base
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Common-collector
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Emitter-follower
Which of the following is NOT a type of transistor biassing?
Base bias
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Collector feedback bias
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Emitter bias
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Current mirror bias
Which of the following statements is true regarding the cutoff region of a transistor?
No current flows between the collector and the emitter
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The transistor operates in its active region
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The transistor is fully saturated
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The transistor is turned off and acts as an open circuit
Which type of transistor is known for its high switching speed and low power consumption?
Darlington transistor
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Bipolar junction transistor (BJT)
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Field-effect transistor (FET)
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Schottky transistor
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