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Paheli took a wire of length of 10 cm. Boojho took a wire of 5 cm of the same material and thickness. Both of them connected the wires as shown in the circuit given in Figure 14.4. - Science

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Question

Paheli took a wire of length of 10 cm. Boojho took a wire of 5 cm of the same material and thickness. Both of them connected the wires as shown in the circuit given in Figure 14.4. The current flowing in both circuits is the same.

(i) Will the heat produced in both cases be equal? Explain

(ii) Will the heat produced be the same if the wires taken by them are of equal lengths but of different thicknesses? Explain.

Answer in Brief

Solution

(i) No, the amount of heat produced in both cases will not be equal. The amount of heat produced in a wire depends upon the length of the wire.

(ii) No, the amount of heat produced in the wire depends upon the thickness of the wire.

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Chapter 14: Electric Current and Its Effects - LONG ANSWER QUESTIONS [Page 78]

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NCERT Exemplar Science [English] Class 7
Chapter 14 Electric Current and Its Effects
LONG ANSWER QUESTIONS | Q 18. | Page 78
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