, electrons are moving south along it. Which of the following statements is correct? A. The actual current is directed north; the conventional current is directed south. B. The actual current is directed south; the conventional current is directed north. C. The actual current is directed north; the conventional current is also directed north. D. The actual current is directed south; the conventional current is also directed south. ___8. If 3 x 1021 electrons go through the cross section of a wire every minute, what is the current through the wire? A. 0.18 A C. 480 A B. 8 A D. 5 x 1019 A ___9. When the length of the wire is doubled, its resistance is: A. halved C. quartered B. doubled D. quadrupled ___10. The current through
___7. Given a wire stretching from north to south, electrons are moving south along it. Which of
the following statements is correct?
A. The actual current is directed north; the conventional current is directed south.
B. The actual current is directed south; the conventional current is directed north.
C. The actual current is directed north; the conventional current is also directed north.
D. The actual current is directed south; the conventional current is also directed south.
___8. If 3 x 1021 electrons go through the cross section of a wire every minute, what is the current
through the wire?
A. 0.18 A C. 480 A
B. 8 A D. 5 x 1019 A
___9. When the length of the wire is doubled, its resistance is:
A. halved C. quartered
B. doubled D. quadrupled
___10. The current through the bulb is 15 mA when connected to a 3-V source. What is the
resistance of the bulb?
A. 0.045 Ω C. 2 Ω
B. 0.20 Ω D. 2000 Ω
Step by step
Solved in 2 steps with 2 images
