A working transistor with its three legs marked P, Q and R is tes… - Vidyadip

MCQ

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 collector
✓
It is an $npn$ transistor with $R$ as base
C
It is a $pnp$ transistor with $R$ as collector
D
It is a $pnp$ transistor with $R$ as emitter

✓

Answer

Correct option: B.

It is an $npn$ transistor with $R$ as base

b

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