When running on its 11.4 VV battery, a laptop computer uses 8.3 WW. The computer can run on battery power for 4.0 hh before the battery is depleted. Part A What is the current delivered by the battery to the computer? Express your answer with the appropriate units.   Part B How much energy, in joules, is this battery capable of supplying? Express your answer in joules.     Part C How high off the ground could a 75 kgkg person be raised using the energy from this battery? Express your answer with the appropriate units.

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.