- #1

- 101

- 5

When to use ## V =-\int E ⋅ dl ## or ## V =\int E ⋅ dl ## ?

When i use ## V =-\int E ⋅ dl ##. i can not show that P = IV because ##\frac{ln \frac{b}{a}}{ln \frac{a}{b}} ≠ 1##

But the solution use ## V =\int E ⋅ dl ## I'm concerned about using "minus" .