Calculating Current in Moving Rods: Exploring the Blv Rule and Faraday's Law

[fizzyfiz]

Homework Statement

The rod is moving on a second rod with speed of v in the magnetic field perpendicular to rod. I know its resistance per meter. I am expected to omit megnetic field created by the current and resistance at the point where rods touch each other and calculate current. I presented the situation with drawing ( the same as in task). My calculations occured to be wrong. Why?

Relevant Equations

I=Emf/R

Homework Statement: The rod is moving on a second rod with speed of v in the magnetic field perpendicular to rod. I know its resistance per meter. I am expected to omit megnetic field created by the current and resistance at the point where rods touch each other and calculate current. I presented the situation with drawing ( the same as in task). My calculations occurred to be wrong. Why?
Homework Equations: I=Emf/R

Emf=-dA/dt*B

 

[kuruman]

Check the area of the triangle as a function of time. Also, try using LaTeX for writing your equations instead of posting photos some of which are sideways.

 

[rude man]

In moving media such as your rod it's generally best to use the Blv rule rather than Faraday, although in this case it's OK to do so.