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22. A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is ________.
(a) 0.58 Ah
(b) 2.1 Ah
(c) 21 Ah
(d) 58 Ah
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5555555555 28. Three hundred joules of energy are consumed in 15 s. The power is ________. (a) 2,000 W (b) 2 W (c) 20 W (d) 200 W- 5555555555 12. A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is ________. (a) 8.57% (b) 42.85% (c) 4.28% (d) 85.7%
- Work, Power and Energy » Exercise - 110. In the vector form power is expressed as : (a) P = F . V (b) P = F x V (c) P = V x F (d) P = F . d
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