Unformatted text preview: y direction. Is there an attractive force, a repulsive force, or no force between them. Show this mathematically. 5. (3 points) Show that displacement current has units of Amps. 6. (2 points) Does a current induced by a changing magnetic ﬁeld obey Kirchkoﬀ’s Voltage Law? 7. (10 points) Find the emf induced in a square loop with sides a lying in the yz-plane in a region in which the magnetic ﬁeld changes over time as ~ B ( t ) = B exp(-5 t/t )ˆ x 1...
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- Summer '08
- Magnetic Field, magnetic field changes, ﬁeld obey Kirchkoﬀ