Law of conservation of Energy is the basis for _______ law.

This question was previously asked in
RRB ALP Instrument Mechanic 23 Jan 2019 Official Paper (Shift 1)
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  1. Ohms
  2. Faradays
  3. Kirchhoff
  4. Fleming

Answer (Detailed Solution Below)

Option 3 : Kirchhoff
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The correct option is 3

Concept:

Kirchoff’s second law: According to Kirchhoff’s voltage law (KVL), the algebraic sum of all the voltages around any closed path is zero. It is based on the conservation of energy.

  • This law is also known as loop rule or voltage law (KVL) and according to it “the algebraic sum of the changes in potential in the complete traversal of a mesh (closed-loop) is zero”, i.e. Σ V = 0.
  • This law represents “conservation of energy” as if the sum of potential changes around a closed loop is not zero, unlimited energy could be gained by repeatedly carrying a charge around a loop.
  • If there are n meshes in a circuit, the number of independent equations in accordance with the loop rule will be (n - 1)
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