ElectrostaticsEasy
Question
Three charge , +q and +q are placed at the vertices of a right angle triangle (isoscale triangle) as shown. The net electrostatic energy of the configuration is zero, Then Q is equal to
Options
A.
B.
C.-2q
D.+q
Solution
Net electrostatic energy of the configuration will be
Here, 
Putting U = 0 we get, Q =
Here, Putting U = 0 we get, Q =
Create a free account to view solution
View Solution FreeMore Electrostatics Questions
A charged ball B hangs from a silk thread S which makes an angle θ with a large charged conducting sheet P, as show...Two equal and like charges when placed 5 cm apart experience a repulsive force of 0.144 newton. The magnitude of the cha...Semicircular ring of radius 0.5 m. is uniformly charged with a total charge of 1.4 × 10-9 C. The electric field int...Five capactiors, each of capacitance value Care connected as show in the figure. Thecapacitance between P & R,and the ca...A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q at(0, -a/4, 0), +3q a...