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[" 28.In an "n-p-n" transistor,the colle...

[" 28.In an "n-p-n" transistor,the collector current is "10],[" ma.If "90%" of the electrons emitted reach the "],[" collector,then the emitter current will be "],[[" (1) "9" mA "," (2) "11" mA "],[" (3) "1" mA "," (4) "0.1" mA "]]

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