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A semi-conductor diode, whose potential barrier is 0.7 volt, is connected in series with ammeter A of resistance 0.7 $Ω$ , as shown in the figure. The reading of ammeter is (The resistance of P-N diode is 0.7 $Ω$ )___ A

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Detailed Solution

As no external potential difference is applied current flows through the junction will be zero.

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