Question
The emf of a cell is , and its its internal resistance is A resistance of is joined to battery in parallel. This is connected in secondary circuit of potentiometer. The balancing length is 160 cm. If 1 V cell balances for 100 cm of potentiometer wire, the emf of cell E is
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At room temperature the resistance of a heating element is . What is the temperature of the element if the resistance is found to be , given that the temperature coefficient of the material of the resistor is .Stuck on the question or explanation?
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Question Text | The emf of a cell is , and its its internal resistance is A resistance of is joined to battery in parallel. This is connected in secondary circuit of potentiometer. The balancing length is 160 cm. If 1 V cell balances for 100 cm of potentiometer wire, the emf of cell E is |
Answer Type | Video solution: 1 |
Upvotes | 156 |