The correct expression for magnetic flux through area A, where B is a constant magnetic field and A is an area perpendicular to the field, is
A. A/B.
B. 1/(B × A).
C. B × A.
D. B/A.
E. B + A.
Answer: C
You might also like to view...
Doubling the potential across a given capacitor causes the energy stored in that capacitor to
A) reduce to one-half. B) double. C) quadruple. D) reduce to one-fourth.
Which is used observationally to determine the age of a star cluster?
A) the total number of main-sequence stars B) the luminosity of the main-sequence turn-off point C) the amount of dust that lies around the cluster D) the number of white dwarfs E) the ratio of giants to supergiants
The inhabitants of a planet in another galaxy have their eyes at the exact center of their 4.0-m long bodies. How long must a plane mirror be for such a creature to be able to see all of its body in the mirror?
a. 1.0 m b. 2.0 m c. 2.5 m d. 4.0 m e. 8.0 m
Which of the following would correctly convert a Fahrenheit temperature (F) to a Kelvin (K) value?
A) K = (5/9)(F - 32) B) K = (5/9)F + 255 C) K = (5/9)F - 273 D) K = (9/5)F + 273 E) K = (9/5)(F - 32 ) + 273