Question

A transistor has a of 250 and a base current, ib, of 20 microamp. The collector current, ic, equals 0.5 ma 500 ma 50 ma 5 ma​

Answer 1

Given:

Transistor alpha = 250a

Base current = ib = 20 microamp

To Find:

Collecter current = Ic

Solution:

A collector current is the current, directly passing in the transistor through a collector.

The formula to determine the collector current is -

beta = Ic/Ib

Where Ic = 20 mA,

Therefore Ib -

Ic = Beta × Ib

Ic = 250 × 20/1000000

Ic = 5000/1000000

Ic = 5

Answer: The collector current is 5mA.