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Question
If the two ends of a p-n junction are joined by a wire,
Options
there will not be a steady current in the circuit
there will be a steady current from the n-side to the p-side
there will a steady current from the p-side to the n-side
there may or may not be a current depending upon the resistance of the connecting wire
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Solution
there will not be a steady current in the circuit
In a p‒n junction, current flows only if it is connected to the battery. If two ends of a p‒njunction are joined by a wire, then there will be diffusion and drift currents in the circuit and they will cancel each other. Hence, no current will flow in the circuit.
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