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A point charge of 100 $μ$ C, is placed at $3 \hat{i} + 4 \hat{j}$ m. Find the electric field intensity due to this charge at a point located at $9 \hat{i} + 12 \hat{j}$ m.

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8000 Vm−1

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detailed solution

Correct option is B

r→=(9−3)i^+(12−4)j^=6i^+8j^⇒r=10mE=9×109×100×10−6102⇒E = 9000 V/m-1

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A point charge of 100 μC, is placed at 3i^+4j^m. Find the electric field intensity due to this charge at a point located at 9i^+12j^m.

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A point charge of 100 $μ$ C, is placed at $3 \hat{i} + 4 \hat{j}$ m. Find the electric field intensity due to this charge at a point located at $9 \hat{i} + 12 \hat{j}$ m.