Four identical pendulums are made by made by attaching a small ball of mass 100 g on a 20 cm long thread and suspended from the same point. Now each ball is given charge Q so that balls move away from each other with each thread making an angle of `45^(@)` from the vertical. The value of Q is close to `((1)/(4piin_(0)) = 9 xx10^(9) " in SI units")`A. `1muC`B. `1.5muC`C. `2muC`D. `2.5muC`

Four identical pendulums are made by made by attaching a small ball of

1.	Four identical pendulums are made by made by attaching a small ball of mass 100 g on a 20 cm long thread and suspended from the same point. Now each ball is given charge Q so that balls move away from each other with each thread making an angle of `45^(@)` from the vertical. The value of Q is close to `((1)/(4piin_(0)) = 9 xx10^(9) " in SI units")`A. `1muC`B. `1.5muC`C. `2muC`D. `2.5muC`
Answer» Correct Answer - B

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