A) 200\[\Omega \]
B) 6.67 \[\Omega \]
C) 5\[\Omega \]
D) 1.5\[\Omega \]
Correct Answer: C
Solution :
Key Idea: The value of resistance can be calculated by the Ohms law \[\left( R=\frac{V}{I} \right)\]. Current in circuit \[I=\frac{P}{V}=\frac{100\times {{10}^{-3}}}{0.5}\] \[=200\times {{10}^{-3}}A\] Voltage across resistance R, \[V=1.5-0.5=1.0V\] Thus, Resistance \[R=\frac{V}{I}=\frac{1}{200\times {{10}^{-3}}}=5\Omega \] NOTE : In the circuit given, the positive terminal of the cell is connected to p-side and negative terminal is connected to n-side of unction diode. So, it is forward biased.You need to login to perform this action.
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