In CB configuration, the value of ?=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5K? when connected in collector circuit. Find the base current.
A)0.01ma
B)0.07ma
C)0.02ma
D)0.05ma

Question

Quizplus · Accepted Answer

The collector current (Ic) is 0.98A. The voltage drop across the resistor is 4.9V, and the resistor value is 5kΩ. Using Ohm's law (V = IR), Ic = 4.9V / 5000Ω = 0.00098A or 0.98mA. The base current (Ib) can be found using the relation Ic = α * Ie, where α is approximately 1 for CB configuration. Thus, Ib = Ie - Ic = 0.02mA.

In CB Configuration, the Value of ?=0