CBSE Class 12-science Answered
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Asked by jain.pradeep | 20 Aug, 2019, 11:12: PM
Expert Answer
Too many questions should not be asked in one posting. we answer only one question.
In the image it is mentioned Qn.6, hence only one question, Qn.6 is answered.
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let q1 and q2 are two charges.
q1 + q2 = 9 μC .................................(1)
By Coulombs law, q1 q2 /( 4πε0 r2 ) = 2 N .............................(2)
if r = 30 cm, then (q1q2) = 2×4π×8.85×10-12 ×302 ×10-4 = 20×10-12 C2 = 20 (μC)2 .......................(3)
By solving eqn.(1) and (3), we get the charges are 4 μC and 5 μC
Answered by Thiyagarajan K | 21 Aug, 2019, 09:52: AM
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