The rate of flow of electric charge is
a. voltage
b. current
c. resistance
d. electric field
e. critical temperature
B
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You are traveling at close to the speed of light, on your way back to Earth from a distant star. In your own reference system of the space ship, compared with the reference system of Earth,
a. the travel time to Earth is shorter and the distance to Earth is the same. b. the travel time to Earth is longer and the distance to Earth is the same. c. the travel time to Earth is shorter and the distance to Earth is longer. d. the travel time to Earth is longer and the distance to Earth is longer. e. the travel time to Earth is shorter and the distance to Earth is shorter.
A circular ring of charge of radius b has a total charge q uniformly distributed around it. Choose the magnitude of the electric field at the center of the ring
1. 0 2. keq/b2 3. keq2/b2 4. keq2/b 5. None of these answer choices is correct.
Listed following are some of the distinguishing characteristics of the four Galilean moons of Jupiter. Match each characteristic to the appropriate moon.
The process of an edge dislocation combining with a vacancy to circumvent an obstacle is dislocation _________.
Fill in the blank(s) with the appropriate word(s).