1. The problem statement, all variables and given/known data A conducting rod AB of length d = 1.8 m makes contact with the metal rails AD and BC as shown in the diagram. The apparatus is in a uniform magnetic field of flux density 680 mWb / m2, perpendicular to the plane of the diagram. 1) Find the magnitude of the induced emf in the rod if it is moving to the right with a velocity of 1 m/s. 2) If the resistance in the circuit is 1.8 Ω, calculate the magnitude of the induced current. 3) Find the rate at which heat is developed in the circuit. 4) Now, instead of a normal magnetic field, the magnetic field makes an angle of 60° with the plane of the loop ABCD. Find the induced emf for the same flux density and velocity. 2. Relevant equations 1) Flux = B*A*cos [tex]\vartheta[/tex]. E = vBL 2) Not sure, couldn't find any equations to use in my book for these. 3. The attempt at a solution 1) I'm having trouble trying to solve for B. The equation I was given was B = Force/qvSin[tex]\vartheta[/tex]. I know the flux, so I thought I'd solve for B. But, without knowing the length of the rectangle, I can;t find the area thus giving me two variables. Any help on this problem would be greatly appreciated.