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NEET2004PhysicsCurrent ElectricityActual

Assertion : A larger dry cell has higher emf. Reason : The emf of a dry cell is proportional to its size.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

The electrical force of a cell or battery called electromotive force (emf). This force, which makes electrons flow around a circuit. Each kind of cell has a particular emf. The size of a cell has no effect on its emf. The chemicals in the cell determines its emf, but large cells last longer than small cells of same basic type. This means that from a large cell, we get a particular em f for more time as compared to small cell.

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