Paheli took a wire of length 10 cm. Boojho took a wire of 5 cm of the same material and thickness

cbse
cbse-class-7-science
electric-current-eff

#1

Paheli took a wire of length 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. The current flowing in both the circuits is the same.

  1. Will the heat produced in both the cases be equal? Explain.
  2. Will the heat produced be the same if the wires taken by them are of equal lengths but of different thickness? Explain.

image

Answer:

  1. No, the amount of heat produced in both the cases will not be equal. Amount of heat produced in a wire depends upon the length of the wire.
  2. No, the amount of heat produced in the wire depends upon the thickness of the wire.