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What will be the reason of miller effect in BJT?(a) inductance of collector load(b) collector-to-emitter capacitance(c) base-to-emitter capacitance(d) base-to-collector capacitanceI have been asked this question by my school teacher while I was bunking the class.Question is taken from Multitone Wideband FM topic in portion Angle Modulation of Analog Communications

Answer»

The correct answer is (d) base-to-collector capacitance

The EXPLANATION: Miller EFFECT is responsible for the increase in EQUIVALENT input capacitance of an inverting voltage amplifier. The increase equivalent input capacitance is given by, CM = C(1 + AV). In BJT, miller effect is due to base-to-collector capacitance.



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