Question

An npn transistor receives _________ voltage to the collector terminal and _________ voltage to the base terminal for proper operation

• A. positive, positive
• B. positive, negative
• C. negative, positive
• D. negative, negative

Answer 1

The correct option is A positive, positive

The voltage at the base terminal is positive and negative at the emitter terminal because of an npn transistor. The base terminal is always positive with respect to the emitter terminal, and also collector supply voltage is positive with respect to the emitter terminal.

In an npn transistor, a positive voltage is given to the collector terminal to produce a current flow from the collector to For pnp transistor, a positive voltage is given to the emitter terminal to produce current flow from the emitter to collector.