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JIPMER 2005
Exam
JIPMER
Year
2005
Subject
Physics
Chapter
Electrostatics

JIPMER 2005 · Physics · Electrostatics

A conducting sphere of radius R=20 ~cm is given a charge Q=16 μ C ....

A conducting sphere of radius R=20 cmR=20 \mathrm{~cm} is given a charge Q=16μCQ=16 \mu \mathrm{C}. What is E→\overrightarrow{\mathbf{E}} at centre?

Options

  1. A3.6×106 N/C3.6 \times 10^6 \mathrm{~N} / \mathrm{C}
  2. B1.8×106 N/C1.8 \times 10^6 \mathrm{~N} / \mathrm{C}
  3. CZero
  4. D0.9×106 N/C0.9 \times 10^6 \mathrm{~N} / \mathrm{C}

Correct answer

C. Zero

Step-by-step solution

The value of EE at the centre of sphere is zero. Since, the centre of sphere is placed with in the Gaussian surface. Hence E=0E=0.
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