A gain transistor has a circuit gain of β= 60. If it is connected in a grounded base configuration, what theoretical a.c collector current (in mA) will flow when an a.c current of 2 mA flows through the emitter (Assume the collector potential to be const.)Correct answer is '1.967'. Can you explain this answer?

Question

A gain transistor has a circuit gain of &beta;= 60. If it is connected in a grounded base configuration, what theoretical a.c collector current (in mA) will flow when an a.c current of 2 mA flows through the emitter (Assume the collector potential to be const.)Correct answer is '1.967'. Can you explain this answer?

Answer

The circuit gain of a gain transistor is a measure of the amplification capability of the transistor circuit. It is usually denoted by the symbol 'β' or 'hfe'. The circuit gain is defined as the ratio of the output current to the input current in a common emitter configuration.

For example, if a transistor has a circuit gain of 100, it means that the output current is 100 times greater than the input current. So, if the input current is 1 mA, the output current would be 100 mA.

The circuit gain of a transistor can vary depending on factors such as temperature, biasing conditions, and manufacturing variations. It is an important parameter to consider when designing amplifier circuits using transistors.

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