Question
Area of cross-section of two wires of same length carrying same current is in the ratio of $1: 2$. Then the ratio of heat generated per second in the wires $=\ldots$(A) $1: \sqrt{2}$(B) $1: 1$(C) $1: 4$(D) $2: 1$
Step 1
Step 1: The heat produced per second in a wire is given by the formula $H = I^2R$, where $I$ is the current and $R$ is the resistance of the wire. Show more…
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