+3 votes
in Physics by kratos

A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal to P or Q, some resistance is seen on the multimeter. Which of the following is true for the transistor?

(a) It is an npn transistor with R as base

(b) It is a pnp transistor with R as base

(c) It is a pnp transistor with R as emitter

(d) It is an npn transistor with R as collector

1 Answer

+5 votes
by kratos
 
Best answer

Correct option (b) It is a pnp transistor with R as base

Explanation:

It is a p-n-p transistor with R as base.

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