For a constant collector-emitter voltage of …, the collector current of a transistor reached to the value of … from …, whereas base current changed from … to … value. If transistor is in active state, small signal current gain (current amplification factor) will be :

Electronic Devices

JEE Main 2022 · 27 Jul, Evening shift · Q6911

PhysicsMedium66×since 2002Q6911

For a constant collector-emitter voltage of

8 \mathrm{~V}

, the collector current of a transistor reached to the value of

6 \mathrm{~mA}

from

4 \mathrm{~mA}

, whereas base current changed from

20 \,\mu \mathrm{A}

25 \,\mu \mathrm{A}

value. If transistor is in active state, small signal current gain (current amplification factor) will be :