A conducting sphere of radius R = 20 cm is given a charge Q=16μ C . What is E at centre?

Question

A conducting sphere of radius R = 20 cm is given a charge Q=16μ C . What is E at centre? (A)  3.6× 106N/C  (B)  1.8× 106N/C  (C) Zero (D)  0.9× 106N/C

Tardigrade Admin · Accepted Answer

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

Q. A conducting sphere of radius R = 20 cm is given a charge $Q = 16 μ C$ . What is E at centre?

$3.6 \times 10^{6} N / C$

$1.8 \times 10^{6} N / C$

Zero

$0.9 \times 10^{6} N / C$

The value of E at the centre of sphere is zero Since, the centre of sphere is placed within the Gaussian surface. Hence, $E = 0$ .

Q. A conducting sphere of radius R = 20 cm is given a charge Q=16μC . What is E at centre?

3.6×106N/C

1.8×106N/C