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A semiconducting device is connected in a series circuit with a battery and a resistance. Current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to zero. The device may be
  • a)
    p-type semiconductor
  • b)
    n-type semiconductor
  • c)
    an intrinsic semiconductor
  • d)
    p-n junction
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A semiconducting device is connected in a series circuit with a batter...
The device is a pn junction. When a current flows across the junction, it is forward biased. On reversing, the polarity of the battery, it is reverse biased and current drops to almost zero.
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A semiconducting device is connected in a series circuit with a battery and a resistance. Current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to zero. The device may bea)p-type semiconductorb)n-type semiconductorc)an intrinsic semiconductord)p-n junctionCorrect answer is option 'D'. Can you explain this answer?
Question Description
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