Acircular loop of wire lies in the -y plane with its center at (0,0) before time t there is no current in the loop. starting at time t 0 a current i- io (1 -e) flows around the loop in the clockwise direction (as seen from the +2 direction) (a) qualitatively describe and sketch the behavior and direction of the magnetic field due to this loop over all space and time (b) qualitatively describe and sketch the behavior and direction of the electric field field due to this loop over all space and time. (c) qualitatively describe and sketch the behavior and direction of the poynting vector due to this loop over all space and time

Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil