Electromagnetics-Magnetic Flux Problem

[proflee]

Four resistors (1kohm) in series form a closed circuit. The total magnetic flux linking the circuit increases at a rate of 0.5 Wb/s in the direction pointing out of the paper. Find the direction and magnitude of the induced current in the circuit

emf=-d(magnetic flux)/dt


I'm having trouble getting this problem started. Mainly because the rate of change of the Magnetic Field is given, rather than a equation. If i was given the equation, I could take a surface integral, etc. to find -d(magflux)/dt. However, I'm not sure what to do with the rate. Any hints on how to get this started would be grately appreciated.

 

[Dick]

A 'weber' IS a unit of magnetic flux. A 'tesla' is a unit of magnetic field. A weber is a tesla*m^2. You are given the rate of magnetic flux change=d(magnetic flux)/dt. It's 0.5 Wb/sec. And you have already written the equation you need. It's Faraday's law. And a Wb/sec is a volt.