First slide

Electrical power

Question

In the figure shown the power generated in y is maximum when y = 5 Ω Then R is :

Moderate

A

2 Ω
B

6 Ω
C

5 Ω
D

3 Ω

Solution

If P = max
R + 2 = y = 5
$R = 3 Ω$

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