Question

In an electrical circuit, the current is related to the power and resistance according to the rule I=pR−−√, where I represents the current (measured in amps), P represents power (measured in watts), and R represents resistance (measured in ohms). What is the electrical power drawn by a device that has a resistance of 15 ohms with a current of 4 amps?

Answer 1

`P=0.27\,\,watts`

Explanation:

Consider the formula:
`I=PR`

Here,
`I` represents the current (measured in amps), P represents power (measured in watts), and R represents resistance (measured in ohms).

Resistance = 15 ohms

Current = 4 amps

To find electrical power drawn by a device, put
`R=15\,,\,I=4`

So,

`4=15P\\P=(4)/(15)=0.27\,\,watts`