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What will be the diode resistance if the current in the circuit is zero?

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What will be the diode resistance if the current in the circuit is zero?

(a) 0 ohms

(b) 0.7 ohms

(c) 0.3 ohms

(d) 1 ohms

This question was posed to me during a job interview.

Question is taken from Diode Resistance in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

1 Answer

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Best answer
Right answer is (a) 0 ohms

The explanation: When the current in the circuit is zero there will be no flow of charges to resist hence the diode resistance will be zero.

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