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Leak type bias is used in plate modulated amplifier to ________

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Leak type bias is used in plate modulated amplifier to ________

(a) increase bandwidth

(b) decrease bandwidth

(c) prevent tuning

(d) prevent excessive grid current

This question was posed to me by my school teacher while I was bunking the class.

I'm obligated to ask this question of Singletone SSB Modulation topic in section SSB Modulation of Analog Communications

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Correct option is (d) prevent excessive grid current

Easy explanation: Leak bias is a type of bias in which the input signal draws grid current from a circuit made of resistors and capacitors. Thus, Leak bias is mainly used to prevent excessive grid current in plate modulated amplifiers.

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