Why power is inversely proportional to the resistance when voltage is kept constant and Why power is directly proportional to resistance when current is kept constant?

Open in App

Solution

Suggest Corrections

Similar questions

Q. For constant voltage, electrical power is directly proportional to ___.

Is the power in series and parallel different for other appliances like when we connect bulbs in series we take it inversely proportional to resistance but for others we take it directly proportional?

Q. Power dissipated in a resistor is to resistance when current through it is constant, and to resistance when voltage across it is constant.

if a bulb is connected in series with two bulbs parallels to each other which formula should I useto find which is more bright? why can't I use heat directly proportional to power and the relation of power in series and parallel? How do I know which relation to use in a question because heat is directly proportional to resistance in one formula and inversely proportional to it in other?

Q. Assertion :A voltmeter and ammeter can be used together to measure resistance and power. Reason: Resistance and power both are proportional to voltage and current.

Join BYJU'S Learning Program