Allied & ICAR Exam Bank • ALLIED_0051 MCQ • 1 Mark

Section 1: Engineering Mathematics

Vector Calculus

Subtopic: Physical interpretations – line, surface and volume integrals

Question Statement:

Green's Theorem in a plane relates a line integral around a simple closed curve $C$ to a double integral over the enclosed region $R$ as:

Options:

  • (A) $\oint_C (M dx + N dy) = \iint_R \left( \frac{\partial N}{\partial x} - \frac{\partial M}{\partial y} \right) dx dy$
  • (B) $\oint_C (M dx + N dy) = \iint_R \left( \frac{\partial M}{\partial x} + \frac{\partial N}{\partial y} \right) dx dy$
  • (C) $\oint_C (M dx + N dy) = 0$
  • (D) $\oint_C (M dx + N dy) = \iint_R (M N) dx dy$

Answer Key:

A

Step-by-Step Solution & Explanation

Green's theorem equates the line integral $\oint_C (M dx + N dy)$ to $\iint_R (\partial N/\partial x - \partial M/\partial y) dA$.
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