Question

Two point charges of strengths 5 and 10 c
respectively are separated by a distance2 m. Calculate the intensity at a point midway between the two charges.
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Answer 1

Answer:

Net electric field intensity midway between both two charges will be 6.75 × 10¹¹ N/C towards the 5 C charge.

Explanation:

For 5 C charge, at midpoint

I₁ = 9 × 10⁹ × (5)²

For 10 C charge, at midpoint

I₂ = 9 × 10⁹ × (10)²

$I_{net}$ = 9 × 10⁹ × { (10)² - (5)² }

$I_{net}$ = 6.75 × 10¹¹ N/C .