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Four point charges Q, q, Q …

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Four point charges Q, q, Q and q are placed at the corner of a square of side 'a'. Find the a) resultant electric force on charge Q. b) potential energy of this system. PLEASE ANSWER

Posted by ? Yang ? 5 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

? Yang ? 5 years, 4 months ago

Thank You So Much ??

Gaurav Seth 5 years, 4 months ago

(a) Finding the resultant force on a charge Q

(b) Potential Energy of the system

(a) Let us find the force on the charge Q at the point C

Force due to the other charge Q

This force is directed along AC

For the charge Q, at the point A, the force will have the same magnitude but will be directed along CA) [Note : Don't deduct marks if the student does not write the direction of the net force , F]

(b) Potential energy of the system

ANSWER

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