An isolated enclosure contains five identical small conducting spheres A, B, C, D and E

PHYSICS · Multi-part · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

An isolated enclosure contains five identical small conducting spheres A, B, C, D and E. Their initial charges (in microcoulombs) are as follows: A: +7+7, B: −3-3, C: +x+x, D: −2x-2x, E: +5+5 The total charge of the enclosure is known to be +4 μC+4\,\mu\text{C}. (a) Determine the value of xx. (b) Sphere E subsequently loses 2.4×10122.4\times10^{12} electrons due to photo-emission. Calculate the new total charge of the enclosure in coulombs. (c) To restore the overall charge of the enclosure to its original value of +4 μC+4\,\mu\text{C}, a sixth sphere F carrying a charge y μCy\,\mu\text{C} is introduced. Find yy.

Related theory

Browse the problem library