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# 12J of work has to be done against anexisting electric field to take charge of

Question:

$12 \mathrm{~J}$ of work has to be done against anexisting electric field to take charge of $0.01 \mathrm{C}$ from $\mathrm{A}$ to $\mathrm{B}$. How much is the potential difference $v_{B}-v_{B}$ ?

Solution: