Transistor Radio does not work satisfactorily when used inside a railway carriage . a . Justify your answer . b . What happens in a transistor when both the emitter and collector are reverse biased ? c. What is this condition known as ? d. Under what condition a transistor works as an open switch ?

Transistor Radio does not work satisfactorily when used inside a railw

1.	Transistor Radio does not work satisfactorily when used inside a railway carriage . a . Justify your answer . b . What happens in a transistor when both the emitter and collector are reverse biased ? c. What is this condition known as ? d. Under what condition a transistor works as an open switch ?
Answer» Solution :a. The iron frame of RAILWAY carriage acts as a magnetic screen . It does not allow the electromagnetic wave signal coming from TRANSMITTER to enter the carriage . b . No current FLOWS through the transistor . C. Cutoff state d. When both the EMITTER and collector are reversed biased

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Transistor Radio does not work satisfactorily when used inside a railway carriage . a . Justify your answer . b . What happens in a transistor when both the emitter and collector are reverse biased ? c. What is this condition known as ? d. Under what condition a transistor works as an open switch ?

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