See the electrical circuit shown in this figure. Which of t…

Physics Current Electricity NEET Previous Year Question MCQ (Single Correct)

See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it?

ε 1 – (i 1 + i 2 )R – i 1 r 1 = 0

ε 2 – i 2 r 2 –ε 1 – i 1 r 1 = 0

– ε 2 – (i 1 + i 2 )R + i 2 r 2 = 0

ε 1 – (i 1 + i 2 )R + i 1 r 1 = 0

Text Solution

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The correct answer is:

Apply Kirchhoff's second law, also called loop rule.
The algebraic sum of the changes in potential in complete transversal of a mesh (closed loop) is zero.
le,
Here,

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