We say that Power,P is inversely proportional to resistance,R because, P = V^2 / R
but , Power,P is also equal to I^2 * R. In this case,the Power becomes directly proportional to the resistance,R

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Solution

P = V ²/R says power is inversely proportional to resistance provided V is constant.
P = I ²R says power is directly proportional if I is constant.
So, depending on the status of V and I the equations are used.

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Q. The electric power of a device can be calculated using P=I²R or P=V²/R .
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We say that Power,P is inversely proportional to resistance,R because, P = V^2 / Rbut , Power,P is also equal to I^2 * R. In this case,the Power becomes directly proportional to the resistance,R

P = V 2 /R says power is inversely proportional to resistance provided V is constant. P = I 2 R says power is directly proportional if I is constant. So, depending on the status of V and I the equations are used.

We say that Power,P is inversely proportional to resistance,R because, P = V^2 / R
but , Power,P is also equal to I^2 * R. In this case,the Power becomes directly proportional to the resistance,R

P = V ²/R says power is inversely proportional to resistance provided V is constant.
P = I ²R says power is directly proportional if I is constant.
So, depending on the status of V and I the equations are used.