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Common Emitter Amplifier Question & Answers

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This article lists 30 Common Emitter Amplifier MCQs for engineering students. All the Common Emitter Amplifier Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Common Emitter Amplifier.

Amplifiers in electronic circuits are known to enhance weaker signals. This is done by increasing the current, voltage, or power of applied signals. The only constraint is to enhance the amplitude of the signal without altering its shape.

For any amplifier, the transistor is an essential part of the circuit. Transistor used can be a BJT or a FET. These are classified into various configurations based on their characteristics. In any circuit transistor as the block appropriate selection of configuration plays a vital role.

Based on desired operating point transistors must be biased. Then the signal is applied as the input to the amplifier and achieved gain at the output. Small-signal amplifiers can amplify input signals with lesser distortion obtained in output signals. Signals obtained at the output are the replica of applied signals (amplified or bigger version).

Common Emitter is one of the BJTs configurations. It is utilized as a Voltage amplifier. Input for this amplifier is applied at the base and the outcome is collected at the terminal collector. The emitter is common for both output and input. A common Emitter is the most widely preferred configuration in electronic circuits.

1). What is the common terminal in BJTs Common Emitter configuration?

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2). What is the input terminal in Common Emitter Amplifier?

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3). Which of these is mostly preferred as amplifiers?

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4). Inverted signal as outcome obtained in _______ amplifiers?

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5). What kind of bias is utilized in Common Emitter Amplifiers?

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6). Input terminals of Common Emitter amplifier are ______________?.

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7). _____________ is referred to as Grounded emitter?

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8). Common Emitter Amplifiers are utilized for ___________ requirement?

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9). Input characteristics of Common Emitter amplifier resembles ___________?

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10). ___________ has small input currents in comparison to Common Base amplifiers?

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Common Emitter Amplifier MCQs for Exams

11). Base region of Common Emitter amplifiers is __________?

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12). Collector-Base junction of Common Emitter Amplifier is _________?

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13). What is high in Common Emitter Amplifiers?

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14). Current amplification factor of CE amplifier is _________?

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15). How the β is the defined for CE amplifiers?

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16). How many capacitors for coupling are used in Common Emitter Amplifiers?

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17). When the capacitors coupled offer higher reactance in CE amplifiers?

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18). When do the coupled capacitors behave short-circuit in CE amplifiers?

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19). _________ amplifiers of Common Emitter configuration can be cascaded to produce an inverted outcome?

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20). At lower frequencies voltage is amplified using _________ amplifiers?

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Common Emitter Amplifier MCQs for Students

21). What happens if CE amplifiers of odd numbers are cascaded?

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22). Bandwidth of CE amplifiers is ________?

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23). Faint signals received form antenna are amplified using ____________?

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24). Which amplifier has both voltage and current gains?

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25). Low noise amplifiers make use of _______________?

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26). Which are not the characteristics of a Common Emitter Amplifier?

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27). Phase-shift produced by Common Emitter amplifier is __________?

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28). Which amplifier has the highest power gain?

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29). Common Emitter amplifiers have ________ resistance at output?

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30). Common Emitter Amplifier is utilized as ____________?

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