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Question: Answered & Verified by Expert
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?
PhysicsSemiconductorsJEE MainJEE Main 2008
Options:
  • A
    It is an npn transistor with $R$ as base
  • B
    It is a pnp transistor with $\mathrm{R}$ as collector
  • C
    It is a pnp transistor with $\mathrm{R}$ as emitter
  • D
    It is an npn transistor with $R$ as collector
Solution:
1968 Upvotes Verified Answer
The correct answer is:
It is a pnp transistor with $\mathrm{R}$ as collector
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