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Define current gain at a constant V_("CE") and V_("BE"). |
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Answer» Solution :i. The ratio `((I_(C ))/(I_(B)))_(V_("CE"))` is called DC GAIN `(beta_("dc"))` and `((Delta I_(C ))/(Delta I_(B)))_(V_("CE"))`is called AC signal CURRENT gain `(beta_("ac"))` or current amplification FACTOR. ii. The ratio `((I_(C ))/(I_(E)))_(V_("CE"))`is called DC gain `(alpha_("dc"))` and `((Delta I_(C ))/(Delta I_(B)))_(V_("BE")) = alpha_("ac") ` is called ac gain. |
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