MHT CET2007PhysicsWaves and Sound

In a diode, when there is a saturation current, the plate resistance will be

Options

Adata insufficient
Bzero
Csome finite quantity
Dinfinite quantity

Correct answer

D. infinite quantity

Step-by-step solution

Key Idea Change in current at saturation is zero. We know that plate resistance is given by r_ p = V I where V is change in voltage and I is change in current. Also, at saturation change in current is zero. r_ p = V 0 = Hence, plate resistance will be infinite.

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