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In a transistor, a change of 7.9 mA in ...

In a transistor, a change of 7.9 mA in emitter current produces a change of 7.8 mA in the collector current produces a change of 7.7 mA in the collector current. What change in the base current is necessary to produce an equivalent change in the collector current?

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MODERN PUBLICATION-SEMICONDUCTOR DEVICES-EXERCISE
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