The charges , and are placed on the circumference of a circle of radius as shown in the figure…
Physics20221 markMCQ
The charges $q_1 = 3\ \mu\text{F}$, $q_2 = 4\ \mu\text{F}$ and $q_3 = -7\ \mu\text{F}$ are placed on the circumference of a circle of radius $1.0\text{ m}$ as shown in the figure below. What is the value of charge $q_4$ placed on the same circle if the potential at the centre is?
(a)$-4\ \mu\text{F}$
(b)$-3\ \mu\text{F}$
(c)$7\ \mu\text{F}$
(d)$0$
Answer
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Electrostatic Potential, Potential Energy and Capacitance
