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C

Chandan Das • 6.78K Points
Tutor III

Q. A semicircular arc of radius r is charged uniformly and the charge per unit length is λ. The electric field at the centre is:

  • (A) \(\frac{λ}{2λε_0r^2}\)
  • (B) \(\frac{λ}{4πε_0r}\)
  • (C) \(\frac{λ^2}{2πε_0r}\)
  • (D) \(\frac{λ}{2πε_0r}\)
Correct Answer - Option (B)
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