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Concepts Of Physics MCQ Edition [Volume 2]
Exam
Concepts Of Physics MCQ Edition [Volume 2]
Subject
Physics
Chapter
Electric Current in Conductors

Concepts Of Physics MCQ Edition [Volume 2] · Physics · Electric Current in Conductors

Analyze the two statements provided below: (A) Kirchhoff's junction...

Analyze the two statements provided below:
(A) Kirchhoff's junction law is based on the conservation of charge.
(B) Kirchhoff's loop law is based on the conservative nature of the electric field.

Options

  1. ABoth A and B are true
  2. BB is true but A is false
  3. CA is true but B is false
  4. DBoth A and B are false

Correct answer

A. Both A and B are true

Step-by-step solution

Kirchhoff's junction law states that the algebraic sum of currents at any junction in a circuit is zero. This implies that charge does not accumulate at any junction, which is a direct consequence of the law of conservation of charge. Thus, statement (A) is true.

Kirchhoff's loop law states that the algebraic sum of changes in potential around any closed loop is zero. This is based on the law of conservation of energy. The potential difference is the work done per unit charge by the electric field. Since the electrostatic field is conservative in nature, the total work done in moving a charge around a closed loop is zero. Thus, statement (B) is also true.

Both statements (A) and (B) are true.
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