A square coil and a triangular coil each have sides of length L. The triangular coil has twice as many turns as the square coil. If a the same current is sent through each coil, when the coils are placed in the same uniform magnetic field making an angle of 30° with the planes of the coils, which coil experiences the greater torque?
a. the square coil
b. the triangular coil
c. Both coils experience the same torque.
d. It depends on the magnitude of the magnetic field that the coils are placed in.
a
You might also like to view...
If gravity is unimportant, and H equals 75 km/sec/Mpc, then the age of the universe is about
a. 8.9 billion years. b. 13 billion years. c. 16.6 billion years. d. 26 billion years. e. 74 billion years.
The vast flood deposits support the hypothesis that Mars once had much running water. Assuming that Mars did have water once, what happened to it?
What will be an ideal response?
As a spaceship nears an event horizon, a clock on the spaceship will be observed:
A) to run faster. B) to stop. C) to run slowly. D) to run backwards. E) to run the same as one on Earth.
Which of these is NOT a source of the shock waves that lead to protostars?
A) radiation from the OB stars in emission nebulae B) expanding Herbig-Haro objects C) expanding planetary nebula shells D) violent supernovae explosions E) collisions between galaxies