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The equation → ∑e = ∑IR is applicable to which law?

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in Physics – Class 12 by (135k points)
The equation → ∑e = ∑IR is applicable to which law?

(a) Kirchhoff’s second law

(b) Kirchhoff’s junction rule

(c) Kirchhoff’s third law

(d) Newton’s Law

The question was asked in an interview for internship.

The question is from Kirchoff’s Law topic in division Current Electricity of Physics – Class 12

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Correct choice is (a) Kirchhoff’s second law

Explanation: The equation → ∑e = ∑IR is applicable to Kirchhoff’s second law. This law is also known as Kirchhoff’s loop rule. This expression tells us that in a closed loop, the algebraic sum of the emfs is equal to the algebraic sum of the products of the resistance and currents flowing through them.

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