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P-N Junction

The charge in...

Question

The charge in emitter current of a PNP transistor is 'x' and the corresponding change in the base current is 'y'. The $β$ factor of the transistor is

A

\frac{x}{y}

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B

\frac{x - y}{x}

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C

\frac{x - y}{y}

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D

\frac{x + y}{y}

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Solution

The correct option is C $\frac{x - y}{y}$
We have,
$β = (\frac{Δ I_{C}}{Δ I_{B}}) = (\frac{Δ I_{E} - Δ I_{B}}{Δ I_{B}}) = \frac{x - y}{y}$

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