Electric potential is the ratio of electric energy to the amount of electric
A) current.
B) resistance.
C) charge.
D) voltage.
E) none of the above
Answer: C
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Series/Parallel Circuits: Two 100-W light bulbs of fixed resistance are to be connected to an ideal 120-V source. What are the current, potential difference, and dissipated power for each bulb when they are connected(a) in parallel (the normal arrangement)?(b) in series?
What will be an ideal response?
Semiconductors: If a battery is connected to a diode with the positive terminal to the p side and the negative terminal to the n side, then diode is said to be
A. forward biased. B. reversed biased. C. Neither choice is correct.
A baseball catcher puts on an exhibition by catching a 0.200-kg ball dropped from a helicopter at a height of 150 m above the catcher. If the catcher "gives" with the ball for a distance of 0.755 m while catching it, what average force is exerted on the mitt by the ball? (g = 9.80 m/s2)
a. 39.7 N b. 294 N c. 389 N d. 399 N e. 1110 N
Which of the above molecules is a phenol?
A) a B) b C) c D) d E) a and d