Question

Using this formula “P= v^2/R for vI need help solving questions number 20

Answer 1

Given:

`P=(v^2)/(R)`

Required:

We need to find the value of v when P=0.5 and R =32.

Step-by-step explanation:

Replace P =0.5 and R=32 in the given formula.

`0.5=(v^2)/(32)`

Multiply both sides of the equation by 32.

`0.5*32=(v^2)/(32)*32`
`16=v^2`
`4^2=v^2`
`We\text{ know that if }a^n=b^n\text{ then a=b.}`
`4^2=v^2\text{ gives 4=v.}`
`v=4`

Final answer:

`v=4`