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Standard VII

Mathematics

Perpendicular Bisector and It's Construction

Point charges...

Question

Point charges +q, +q and -q are placed at the corners A, B and C respectively of an equilateral triangle ABC. The resultant force on '-q' placed at C acts :

in a direction bisecting angle ACB

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along BC

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in a direction making an angle of

60^{o}

with BC

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along AC

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Solution

The correct option is A in a direction bisecting angle ACB
REF.Image
$| f_{A} | = | f_{B} |$
$f_{n e t} =↓ 2 F_{A} c o s 30$
d) Bisecting ACB

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Point charges +q, +q and -q are placed at the corners A, B and C respectively of an equilateral triangle ABC. The resultant force on '-q' placed at C acts :

The correct option is A in a direction bisecting angle ACBREF.Image|fA|=|fB|fnet=↓2FAcos30d) Bisecting ACB

The correct option is A in a direction bisecting angle ACB
REF.Image
$| f_{A} | = | f_{B} |$
$f_{n e t} =↓ 2 F_{A} c o s 30$
d) Bisecting ACB