A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20° and increasing at the rate of 10°/s, what is the magnitude of the induced emf in the loop?
a. 13 mV
b. 0.27 V
c. 4.8 mV
d. 14 mV
e. 2.2 mV
c
You might also like to view...
What future awaits Triton, the largest satellite of Neptune?
a. Tidal break-up as it spirals closer to Neptune b. Escape from Neptune after billions of years, as Triton gradually spirals outward c. Gravitational capture by Pluto d. Probable destruction from impact by Pluto
Which of the following is not a vector?
a. The force that represents your weight. b. The diameter of Earth. c. The velocity of a baseball in flight. d. Your displacement from walking five blocks to the North. e. The unbalanced force from two people pushing a cart in opposite directions.
Lunar eclipses can occur only when the phase of the Moon is
A) new. B) first quarter. C) full. D) third quarter.
When sound travels faster higher above the ground than below, bending of sound tends to be
A) upward. B) downward. C) to the left. D) to the right. E) none of the above