Question

Three metallic sphere say X, Y and Z have charge -10 c, 10c, 10C respectively x,y,z are brought in contain such that charge on each of A and B become 3C what is charge on Z

Answer 1

Answer:

480c

Explanation:

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Answer 2

Answer:

After contact the charge on the Z species becomes 4C.

Explanation:

Given:
Charge on X=-10C

Charge on Y=10C

Charge on Z=10C

After contact

Charge on X=3C

Charge on Y=3C

To find: Charge on Z=?
Solution:

When bought in contact the charge should be conserved.

∴-10+10+10=3+3+Z

∴10=6+Z

∴Z=10-6

∴Z=4

Therefore, after contact the charge on Z becomes 4C.