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25 March, 10:35

A 3.6-volt battery is used to operate a cell phone

for 5.0 minutes. If the cell phone dissipates

0.064 watt of power during its operation, the

current that passes through the phone is

(1) 0.018 A (3) 19 A

(2) 5.3 A (4) 56 A

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Answers (1)
  1. 25 March, 10:47
    0
    The equation with the values for this one is P = VI, and we know some of the values, so substituting them in:

    0.064 = 3.6 x I

    I=0.064/3.6

    =0.0177 = 0.018A
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