21. When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
(a) 12.5 C
(b) 1.25 C
(c) 0.5 C
(d) 5 C
22. Eight-tenths coulomb passes a point in 4 s. The current in amperes is ________.
(a) 1.6 A
(b) 16 A
(c) 2 A
(d) 0.2 A
23. The current in a given circuit is not to exceed 24 A. Which value of fuse is best?
(a) a fuse is not necessary
(b) 10 A
(c) 24 A
(d) 20 A
24. A multimeter measures ________.
(a) current
(b) voltage
(c) resistance
(d) current, voltage, and resistance
25. If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?
(a) 10.5 C
(b) 105 C
(c) 3.4 C
(d) 34 C
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