In the given electrical circuit, which one of the following equation is a correct equation?

Question

TestHub · Accepted Answer

The given circuit can be drawn as

Applying Kirchhoff’s voltage law (KVL) in loop ABCD, we get
$- (i_{1} + i_{2}) R + E_{2} - i_{2} r_{2} = 0$ …. (i)
Applying KVL in loop ABFEA, we get
$- (i_{1} + i_{2}) R - i_{1} r_{1} + E_{1} = 0$ ….. (ii)
Applying KVL in Loop EFCDE, we get
$- E_{1} + i_{1} r_{1} + E_{2} - i_{2} r_{2} = 0$ ….. (iii)
From the given options, only option (c) satisfies Eq. (ii), hence it is the correct equation.

Physics - Current Electricity Question with Solution | TestHub

Options:

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