The reverse bias in a junction diode is changed from 5V to 15V then the value of current changes from 38μA to 88μA. The resistance of junction diode will be
4×105Ω
2×105Ω
106Ω
3×105Ω
A
2×105Ω
B
4×105Ω
C
3×105Ω
D
106Ω
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Solution
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Given that: Change in voltage, V=15−5=10V Change in current, I=88−38=50μA Hence, resistance of the diode is R=VI=1050×10−6
R=0.2×106=2×105
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