Chapter 10: The Maxwell Equations

Quiz

1. A square loop of area  cm2 and  turns rotates in an external steady magnetic field , T. The axis of rotation is . The loop rotates at a rate of 6000 RPM (revolutions per minute). What is the magnitude of the voltage  induced at the terminals of the loop (at open circuit)?

, V

, V

, V

, V



2. An external force is applied to a conducting bar supported by conducting rails, with which the bar is in perfect electrical contact (see figure). The bar moves with a constant velocity , m/s. A steady magnetic field is present: , T. The width between the supporting rails is , m. Find the voltage  measured by the ideal voltmeter ().

, V

, V

, V

, V



3. If in Problem #2, the voltmeter is not ideal but with internal resistance  , there is current I flowing through the sliding bar. Find the magnetic force  due to the interaction of I with the magnetic field B.

, N

, N

, N

, N



4. The magnetic intensity of a time-varying field is given by

, A/m.

What is the electric flux density vector ?

, C/m2

, C/m2

, C/m2

, C/m2



5. Is it possible to derive the divergence Maxwell equation

from any other Maxwell equation? If yes, which one?

No.

Yes:

Yes:

Yes:



6. Is it possible to derive the divergence Maxwell equation

from any other Maxwell equation and the continuity law, ? If yes, which one?

No.

Yes:

Yes:

Yes: