Physics · Electrostatics
Two identical small conducting balls B1 and B2 are given charges of -7 pC and +4 pC respectively. They are brought into contact with a third identical uncharged ball B3 and then separated. If the final charge on each ball is -2 pC, what was the initial charge on B3?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-15 pC
- 2-5 pC
- 3-3 pC✓
- 4-2 pC
Correct answer
-3 pC
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