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3. A conducting sphere of radius …

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3. A conducting sphere of radius unknown charges 2.5 of the electric field 70 cm from the centre of the centre of the sphere is 2.5X105 N/C & points radially inwards, What is the net charge on the sp here? 30cm has

Posted by Devipriya . M 2 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Devipriya . M 2 years, 4 months ago

Electric field intensity (F) at a distancect from the centre of a sphere containing net chan is given by the relation.. E = 9/(4pi*epsilon_{0} * d ^ 2) Where g = m * e ^ 2 * eLonge = 2.5 * 10 ^ 5 * N / l * l d = 70 com = 0.7m And = 1/(4pi*epsilon_{0}*t) = 9 * 10 ^ 9 * Nl * m ^ 2 / (c ^ 2) q = E(4pi*epsilon_{0}) * d ^ 2 =(2.5 * 10 ^ 5 * (0.7) ^ 2)/(9 * 10 ^ 9) =0.1361 * 10 ^ - 4 * C Because the electric field lines point radially inwards, the charge on the sphere is negative Therefore, the net change. on the sphere is 0.1361

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