Question

(o State Joules Law of heating effect.
Vi graph for the two wire A and B both the wire one by one to the same battery.
Which of the two will produce more hem per unt une vulcation for your​

Answer 1

1. Joule's law of heating states that the power of heating generated by an electrical conductor is proportional to the product of its resistance and the square of the electric current passing through the conductor.

2.From the graph, slope of wire A is greater slope =

dx

dy

=VIR=VI= slope

Hence wire A has greater resistance. The heat produced by resistor is given by P=I

2

.RT. It is directly proportional to square of current paring through it resistance and time for which the current passes through the conductor. Hence A wire is made of a material of high resistivity.

graph is send above.

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