The answer is 27.03 I just multiplied the two numbers
Explanation:
Power is current times voltage.
P = IV
And from Ohm's law, voltage is current times resistance.
V = IR
So if we solve for I in Ohm's law and substitute into the power equation:
I = V/R
P = (V/R) V
P = V² / R
Given that P = 7 W and V = 7 V:
7 = 7² / R
R = 7 Ω
Make sure you copied the problem correctly. If you did, the answer key may be wrong.
3.51 Moles. I am pretty sure that is right.
