A) 10 kW
B) 11 kW
C) 15 kW
D) 11.1 kW
Correct Answer: D
Solution :
\[{{r}_{p}}=\frac{\Delta {{V}_{p}}}{\Delta {{i}_{p}}}=\frac{150-100}{(12-7.5)\times {{10}^{-3}}}=\frac{50}{4.5}\times {{10}^{3}}=11.1k\Omega \].
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