Question:medium
The r.m.s. value of A.C. which when passed through a resistor produces heat, which is twice that produced by a steady current of $1.414$ A in the same resistor is
The r.m.s. value of A.C. which when passed through a resistor produces heat, which is twice that produced by a steady current of $1.414$ A in the same resistor is
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Heat $\propto I^2$ → doubling heat means current increases by $\sqrt{2}$ factor.
Updated On: May 2, 2026
- $2$ A
- $3.46$ A
- $2.818$ A
- $1.732$ A
- $1$ A
Show Solution
The Correct Option is A
Solution and Explanation
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