A bar magnet is held in a vertical orientation above a loop of wire that lies in the horizontal plane as shown in Figure OQ31.7. The south end of the magnet is toward the loop. After the magnet is dropped, what is true of the induced current in the loop as viewed from above?
1
You might also like to view...
An electron traveling due north with speed 4.0 × 105 m/s enters a region where the Earth's magnetic field has the magnitude 5.0 × 10-5 T and is directed downward at 45° below horizontal. What force acts on the electron?
A) 2.3 × 10-18 N B) 3.2 × 10-18 N C) 2.3 × 10-19 N D) 3.2 × 10-19 N E) 2.3 × 10-20 N
A rocket, initially at rest, is fired vertically with an upward acceleration of 10 m/s2 . At an altitude of 0.50 km, the engine of the rocket cuts off. What is the maximum altitude it achieves?
a. 1.9 km b. 1.3 km c. 1.6 km d. 1.0 km e. 2.1 km
A negatively charged particle is moving in the +x-direction when it enters a region with a uniform electric field pointing in the +x-direction. Which graph gives its position as a function of time correctly? (Its initial position is x = 0 at t = 0.)
a.
b.
c.
Atomic physics deals mainly with phenomena involving which particles in atoms?
a. Quarks b. Protons c. Electrons d. Neutrons