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The S21 parameter of a HJT increases with increase in the operating frequency of the transistor.

The S21 parameter of a HJT increases with increase in the operating frequency of the transistor. Correct Answer false

S21 parameter of a transistor signifies the gain of the transistor. With the increase in the operating frequency of the transistor, the gain of the transistor reduces, but it is to be noted that the fall in gain of a HJT is not as rapid as fall in gain in a BJT.

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