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Resistance of  long potentiometer wire is  it is connected to a battery  and a resistance  in series. A source of  gives null point at  length, then external resistance  is

a)

b)

c)

d)


Question ID - 150766 :-

Resistance of  long potentiometer wire is  it is connected to a battery  and a resistance  in series. A source of  gives null point at  length, then external resistance  is

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)



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A transistor is operated in common-emitter configuration at  such that a change in the base current from  produces a change in the collector current from  to . The current gain is


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