The variation with potential difference V of the current I in a semiconductor diode is shown below. What is the resistance of the diode for applied potential differences of +1.0 V and –1.0 V?
resistance at +1.0 V= 20 Ω / resistance at -1.0 V= infinite
2 )
resistance at +1.0 V= 20 Ω / resistance at -1.0 V= zero
3 )
resistance at +1.0 V= 0.05 Ω / resistance at -1.0 V= infinite
4 )
resistance at +1.0 V= 0.05 Ω / resistance at -1.0 V= zero
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