Current gain for transistor as an amplifier for CE Configuration is given by:

(\frac{Δ i_{C}}{Δ i_{B}})_{V_{C}}

= constant

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(\frac{Δ i_{B}}{Δ i_{C}})_{V_{C}}

= constant

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(\frac{Δ i_{B}}{Δ i_{B}})_{V_{C}}

= constant

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None of these

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Solution

The correct option is A $(\frac{Δ i_{C}}{Δ i_{B}})_{V_{C}}$ = constant
Current gain for transistor as an amplifier for $C - E$ configuration is given by $(\frac{△ I_{C}}{△ I_{B}}) V_{C} = C o n s t a n t$
Since, the current gain for the common-emitter amplifier circuit is given by,
$β = \frac{△ I_{C}}{△ I_{B}}$
Where
$β =$ Current gain.
$△ I_{C} =$ Change in collector current.
$△ I_{B} =$ Change in base current
$V_{C} =$ Collector Voltage.

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