A 30 volts storage battery is being charged by 120 volts DC supply. A resistor has been connected in
series with the battery to limit the charging current to 15 A. The rate at which energy is disippated in the
resistor is
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Explanation:
To find out, we need to be able to calculate the amount of power that the resistor will dissipate. If a current I flows through through a given element in your circuit, losing voltage V in the process, then the power dissipated by that circuit element is the product of that current and voltage: P = I × V.
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