Question

state the relationship between the power consumed by a device is Resistance R and current I flowing through it an electric iron of resistance 20 ohm takes a current of 5 ampere calculate its electric power​

Answer 1

Answer:

hey frnd..

Explanation:

p=5×5×20

= 500J

thus the electric power is 500 joules

Answer 2

$\huge{\underline{\tt{\red{Relation-}}}}$

$\boxed{P= \dfrac{V^2}{R}}$

next we will find the electric power

so

$\huge{\underline{\tt{\blue{Solution-}}}}$

Given:-

R= 20 ohm

I= 5A

Find:- Power

so,

$P= \dfrac{5^2}{20}= \dfrac{25}{20}$

$\boxed {P= 1.25 \ watt}$