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For a transistor, the current ratio `beta_(dc)` is defined as the ratio ofA. collector current to emitter current.B. collector current to base current.C. base current to collector current.D. emitter current to collector current. |
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Answer» Correct Answer - B The current amplification factor of a transistor for direct current (DC) is the ratio of collector current (`l_(c)`) to the base current (`l_(B)` ) in common emitter configuration i.e., `B_(DC)=(I_(C))/(I_(B))` However, the ratio of collector current to the emitter current gives the value of current amplification factor in common base configuration, i.e., `alpha_(DC)=(I_(C))/(I_(E))` |
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