Charges -50- -20- -30 and -100 nano coulomb are placed at the four corners of a square of side 5-2 cm- The potential at the intersection of diagonals is -

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Electric Potential at a Point in Space Due to a Point Charge Q

Charges +50...

Question

Charges $+ 50, + 20, + 30$ and $- 100$ nano coulomb are placed at the four corners of a square of side $5 \sqrt{2}$ cm. The potential at the intersection of diagonals is :

1.8 \sqrt{2} \times 10^{4} V

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3.6 \times 10^{4} V

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1.8 \times 10^{4} V

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Z e r o

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Solution

The correct option is D $Z e r o$
Potential at centre is sum of potential due to individual charges
$V = \frac{k (50)}{5} + \frac{k (20)}{5} + \frac{k (- 100)}{5} + \frac{k (30)}{5}$

$V = \frac{k}{5} (50 + 20 - 100 + 30)$
$V = 0$

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Charges +50,+20,+30 and −100 nano coulomb are placed at the four corners of a square of side 5√2 cm. The potential at the intersection of diagonals is :

The correct option is D ZeroPotential at centre is sum of potential due to individual chargesV=k(50)5+k(20)5+k(−100)5+k(30)5V=k5(50+20−100+30)V=0

Charges $+ 50, + 20, + 30$ and $- 100$ nano coulomb are placed at the four corners of a square of side $5 \sqrt{2}$ cm. The potential at the intersection of diagonals is :

The correct option is D $Z e r o$
Potential at centre is sum of potential due to individual charges
$V = \frac{k (50)}{5} + \frac{k (20)}{5} + \frac{k (- 100)}{5} + \frac{k (30)}{5}$

$V = \frac{k}{5} (50 + 20 - 100 + 30)$
$V = 0$