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A spherical conductor of radius 10 cm has a charge of 3.2 x 10-7 C distributed uniformly. What is the magnitude of electric field

A spherical conductor of radius 10 cm has a charge of 3.2 x 10-7 C distributed uniformly. What is the magnitude of electric field at a point 15 cm from the centre of the sphere ? 1 -=9x10 Nm/C 41 0 (1) 1.28 x 107 N/C (2) 1.28 x 104 N/C (3) 1.28 x 105 N/C (4) 1.28 x 106 N/C

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