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Question
Three wires A, B, and C are made up of same material and have the same length. The order of their cross-sectional areas is C > B > A. If the same amount of current flows through all the three wires, the order of heat generation will be:
Three wires A, B, and C are made up of same material and have the same length. The order of their cross-sectional areas is C > B > A. If the same amount of current flows through all the three wires, the order of heat generation will be:
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Solution
The correct option is B A > B > C
The amount of heat produced in a wire depends on its material, length and thickness.
Since the material and the length of each wire is the same. The heat generation will depend on the cross sectional area of the wires.
Wire C have more cross sectional area as compared to wires A and B. The thicker one will get less heated as compared to the thinner one.
Thus, the order of heat generation will be A>B>C.
The amount of heat produced in a wire depends on its material, length and thickness.
Since the material and the length of each wire is the same. The heat generation will depend on the cross sectional area of the wires.
Wire C have more cross sectional area as compared to wires A and B. The thicker one will get less heated as compared to the thinner one.
Thus, the order of heat generation will be A>B>C.
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