Electric energy is dependent on time. a) True b) False
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Electric energy is dependent on time.
a) True
b) False
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- How to solve this questionA capacitor is attached to a battery with a terminal voltage of V. What happens to the charge on the the capacitor if it is attached to a new battery with a terminal voltage of 2V, twice as large as the previous battery? a) new charge is twice as much as was stored before b) new charge is the same as was stored before c) new charge is half as much as was stored beforeConsider what happens when a person moves around in dry conditions. The rubbing of motion leads to static electric charge building up on the body. Assume the capacitance of the human body to be about 155 pF. a) How much charge would have to build up on a body to generate a potential difference of 10 kV? b) A particular cell phone can have its circuits destroyed if exposed to an electric shock containing 300 u.J of energy. What voltage does that correspond to if the shock is coming from a human body?