Resistance?

Question

I am having trouble with this question:
In a resistance, the amount of energy concerted to heat is:
a.) directly proportional to both R and I^2
b.) directly proportional to R but inversely proportional to I^2
c.) inversely proption to R but directly proportional to I^2
d.) inversely proportion to R but directly proportional to I^2.

Thank you for your help. :)

Answer 1

I would think without looking up any equations that it has to be A. The more current you throw into a circuit (i.e. I) will put more energy into it. Now when this flow of energy is impeded or meets resistance to flowing easily (i.e. R) then the energy flow of the current is converted into heat energy. The more R, the more impedance, the more conversion. But, I'll let someone who stuck with electronics area of physics studies answer more precisely.

Answer 2

The amount of energy converted is E = I^2 R.

Therefore it isdirectly proportional to both I^2 and R.

a) is the correct answer.

Answer 3

energy lost to heat by conducting electricity equals (current)^2*(resistance)

Answer 4

What a commotion! Iam guessing C.

Answer 5

A

in a simple circuit, V=IR, P=VI=I^2R

Answer 6

choice a as energy is I^2Rt

Answer 7

i think (b)