Analog Electronics
A forward potential of 10 V is applied to a silicon diode. A resistance of 1KΩ is also in series with the diode. The electric current is

  0.
  0.7 mA.
  10 mA.
  9.3 mA.

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Analog Electronics
The arrowhead on the transistor symbol points in the direction of

  majority carrier flow in the emitter region.
  minority carrier flow in the emitter region.
  electron flow in the emitter region.
  conventional electric current flow in the emitter region.

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