A semiconductor diode and a resistor of ...

A semiconductor diode and a resistor of constant resistance are connected in some way inside a box having two external terminals. When a potential difference `V` of `1V` is applied, `1=25 mA`. If potential difference is reversed, `I=50 mA`. Forward resistance and diode resistance are

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A semiconductor diode and a resistor of constant resistance are connected in some way inside a box having two external terminals. When a potential difference `V` of `1V` is applied, `1=25 mA`. If potential difference is reversed, `I=50 mA`. Forward resistance and diode resistance are

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