Question

12 wires each equal in length are joined together to form skleton of cube.now this cube is moved with velocity v in petpendicular direction of magnetic field b .find emf induced in each arm of cube

Answer 1

We know, F=q( v x B) , Now since V & B vectors are in same direction therefore the force on electrons in any arm of the cube will be zero.So , there will be no drift of electron in any arm.Hence , there will be no induced emf over any of the wires