An unknown transistor needs to be identified as a npn or pnp type. A multimeter, with +ve and -ve terminals, is used to measure resistance between…

Question

An unknown transistor needs to be identified as a npn or pnp type. A multimeter, with +ve and -ve terminals, is used to measure resistance between different terminals of transistor. If terminal 2 is the base of the transistor then which of the following is correct for a pnp transistor?

MARKS Content Team · Accepted Answer

Correct answer: (B) +ve terminal 2, -ve terminal 1, resistance high. When pn junction is forward biased resistance is low. When pn junction reverse biased resistance is high. Because of this reason, we can amplify currents. For this reason, Transistors can be used as:- An amplifier A switch Logic gates

An unknown transistor needs to be identified as a $n p n$ or $p n p$ type. A multimeter, with +ve and -ve terminals, is used to measure resistance between different terminals of transistor. If terminal 2 is the base of the transistor then which of the following is correct for a $p n p$ transistor?

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