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

Answer:

0.5ma

Explanation:

Answer 2

Answer:

For the given transistor, the collector current is equal to 5mA.

Explanation:

Given that The for a transistor:

The value of base current, $I_{B}=20\mu A$

The value of current gain, $\beta =250$

The current gain is the ratio of collector current to base current if the transistor.

Therefore      $\beta =\frac{I_{C}}{I_{B}}$

⇒         $I_{C}=\beta *I_{B}$

⇒         $I_{C}=(250)*(20*10^{-6})A$

⇒         $I_{C}=5000*10^{-6}A$

⇒          $I_{C}=5*10^{-3}A$

∴            $I_{C}=5mA$

Therefore the transistor has collector current of 5 microamperes when base current is 20mA.