A circular loop (area = 0.20 m2) turns in a uniform magnetic field with B = 0.13 T. At an instant when the angle between the magnetic field and the normal to the plane of the loop is (p) rads and is decreasing at the rate of 0.50 rad/s, what is the magnitude of the emf induced in the loop?
a. zero
b. 13 mV
c. 26 mV
d. 20 mV
e. 18 mV
A
You might also like to view...
Which of the following statements is true of the rings of Saturn?
A) Unlike A and B rings, C rings are dust-size ice crystals. B) C ring particles contain more minerals and less ice. C) C ring particles are less than half as bright as particles in the A and B rings. D) All the ring particles that are at the same distance from the planet orbit at different speeds.
When a massive star begins to run out of hydrogen to fuse, its outer layers of gas ________.
A. expand and cool B. contract and heat C. contract and cool D. expand and heat
Light of wavelength 550. nm in air is found to travel at 1.96 × 108 m/s in a certain liquid
(a) Determine the index of refraction of the liquid. (b) Determine the frequency of the light in air.
A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a speed of 1500 m/s. A baseball has a mass of 0.145 kg. What must be its speed if the pitcher's claim is valid?