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In the following common-emitter circuit, beta = 100 and V_(CE) = 7 . If V_(BE) is negligible, then the base current is |
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Answer» 0 . 0 1 mA Given , `beta = 100, V _(CE) = 7V, V_(BE) = 0 ` Applying KVL `RARR - 15 + 2Kl_(C) + V_(CE) = 0 ` `rArr - 15 + 2KL_(C) + 7 = 0 rArr I_(C) = 4 mA` `:.`Common-emitter CURRENT gain , `beta = (I_(C))/(I_(B))` or`I_(B) = (I_(C))/(beta) = (4 xx 10^(3))/(100) = 0 . 0 4mA` 
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