In an NPN transistor circuit, the collector current is $10 mA$. If $90 \%$ of the electrons emitted reach the collector, the emitter current ( $i$ ) and base current $(i)$ are given by
  • A$i=-1 mA , i=9 mA$
  • B$i=9 m A, i=-1 m A$
  • C$i=1 mA , i=11 mA$
  • D$i=11 mA , i=1 mA$
[KCET 2001]
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