# Magnetic flux against e.m.f (V)

## Main Question or Discussion Point

Hi,

Could someone confirm for me please. As the magnetic flux increases does the e.m.f increase as well? (solenoid) And if we were to plot a graph of the two against each other, the graph will have a positive line/curve. My graph has a negative curve suggesting that as flux increases e.m.f decreases, that's wrong right?

Thanks.

## Answers and Replies

Related Other Physics Topics News on Phys.org
marcusl
A changing magnetic flux $$\phi$$ produces a "back emf" $$\varepsilon$$ according to
$$\varepsilon=-\frac{d\phi}{dt}$$