What does q1 q2 0 signify in electrostatics two charges q1 and q2 separated by a small distance satisfy the equation q1 q2 0 What does it tell about the charges?

Two charges of Q1 Q2 separated by a small distance satisfy the equation Q1+Q2 = 0 what does it tell about charges

Posted by Kunal Kishor 3 years, 6 months ago

It tell about additivity of charges. Q1 and Q2 are equal and opposite charges.

Four point charges qA = 2 μC, qB = – 5 μC, qc = 2 μC, and qD = –5 μC are located at the corners of a square ABCD of side 10 cm. What is the force on a charge of 1 μC placed at the centre of the square?

Suppose a square ABCD with each side of 10 cm and centre 0. At the centre, the charge of 1 μC is placed.

As qA = qc, the charge of 1 μC experiences equal and opposite forces FA and Fc due to charges qA and qC.
At the same time, the charge 1 μC experiences equal and opposite forces. FB and FD due to equal charges qB and qD at B and D. Thus, the net force on charge of 1 μC due to the given charges is zero.

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