In Joule's heating law, when R and t are constant, if H is taken along the y axis and $I^2$ along the x axis, the graph is (a) straight line (b) parabola (c) circle (d) ellipse

In Joule's heating law, when R and t are constant, if H is taken along the y axis and I² along the x axis, the

I. Multiple Choice Questions · Q15

I^2

(a) straight line

(b) parabola

(d) ellipse

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Step 1. Joule's law states $H=I^2Rt$ .

Step 2. With R and t held constant, this can be rewritten as $H=(Rt)\times I^2$ , i.e. $H$ is a CONSTANT multiple of $I^2$ .

Step 3. Plotting H (y-axis) against $I^2$ (x-axis), this constant-multiple relationship, $H=(\text{constant})\times(I^2)$ , is exactly the equation of a straight line through the origin, with slope equal to $Rt$ . …

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Q.In Joule's heating law, when R and t are constant, if H is taken along the y axis and $I^2$ along the x axis, the graph is

Concept understanding — Joule's Law of Heating and its Applications

Q.In Joule's heating law, when R and t are constant, if H is taken along the y axis and I2I^2I2 along the x axis, the graph is

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Q.In Joule's heating law, when R and t are constant, if H is taken along the y axis and $I^2$ along the x axis, the graph is

Unlock everything free for 14 days