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- Tell me? A semiconductor device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops almost to zero. The device may be
A semiconductor device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops almost to zero. The device may be
- Option 1)
A P-type semiconductor
- Option 2)
An N-type semiconductor
- Option 3)
A PN-junction
- Option 4)
An intrinsic semiconductor
Answers (1)
P -N junction as diode -
It is a one way device. It offers a low resistance when forward biased and high resistance when reverse biased.
- wherein
R = 0, Forward
R Reverse
For a PN Junction current easily flow when it is in forward bias and it almost become zero when it is reverse bias.
Option 1)
A P-type semiconductor
Incorrect
Option 2)
An N-type semiconductor
Incorrect
Option 3)
A PN-junction
Correct
Option 4)
An intrinsic semiconductor
Incorrect
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