Question

What is the electric field intensity at a distance of 20cm from a charge 2 X 10^-6 C in vacuum? (a) 250,000 (b) 350,000 (c) 450,000 (d) 550,000 The question was asked in an interview for internship. This intriguing question comes from Electric Field Intensity in section Electrostatic Fields of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

Correct option is (c) 450,000 Explanation: E = Q/ (4∏εor2) = (2 X 10^-6)/(4∏ X εo X 0.2^2) = 450,000 V/m.