Question

For a common base circuit if $\frac{I_C}{I_E}=0.98$ then current gain for common emitter circuit will be

• A. 49
• B. 98
• C. 4.9
• D. 25.5

Answer 1

Answer: (A)

$\frac{I_C}{I_E}=\alpha =0.98,\frac{I_C}{I_B}=\beta =\frac{\alpha }{1-\alpha }=49$