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Class 12 · Physics · Easy
→An identical conducting sphere has a charge of +8 C. It is touched with an identical neutral sphere and then separated. What is the final charge of the first sphere?
Class 12 · Physics · Medium
→Three identical conducting spheres have charges of +12 C, −3 C, and 0. If all three are touched together, what charge will each sphere have?
Class 12 · Physics · Medium
→Two identical conducting spheres have charges of +10 C and −4 C. After they touch and are separated, what charge will each sphere have?
Class 12 · Physics · Easy
→A charge is claimed to be 2.5 times the elementary charge. Why is this claim considered wrong at school level?
Class 12 · Physics · Easy
→A body has a negative charge of 11.2 × 10⁻¹⁹ C. How many excess electrons does it have?
Class 12 · Physics · Easy
→In difficult problems based on conservation of charge, what is the safest first step?
Class 12 · Physics · Easy
→A student says that rubbing produces total charge. What is the correct scientific correction?
Class 12 · Physics · Easy
→Why does charge quantization usually appear continuous for large bodies?
Class 12 · Physics · Medium
→Why is the boundary of a system important when applying conservation of charge?
Class 12 · Physics · Medium
→An object has a charge of +2.08 × 10⁻¹⁸ C. How many electrons has it lost?
Class 12 · Physics · Medium
→An object has a charge of −2.4 × 10⁻¹⁸ C. How many excess electrons does it have?
Class 12 · Physics · Medium
→Which option represents a charge on a free object that is not an integral multiple of the elementary charge?
Class 12 · Physics · Easy
→An object has a charge of +q. It receives a charge of −2q. What is its final charge?
Class 12 · Physics · Medium
→Two identical spheres have charges plus q and zero. They are touched and separated. Then the first sphere is touched with a third identical neutral sphere. What is the final charge of the first sphere?
Class 12 · Physics · Medium
→Two unequal conducting spheres are brought into contact. Even if charge does not divide equally after contact, which statement is certainly correct?
Class 12 · Physics · Medium
→A particle has charge plus 6.4 × 10^-19 coulomb. If it gains four electrons, what will be its final charge?
Class 12 · Physics · Medium
→An object has charge minus 3.2 × 10^-19 coulomb. If it loses two electrons, what will be its new charge?
Class 12 · Physics · Medium
→If one part of an isolated system loses plus two q charge, what change occurs in the charge of the remaining part?
Class 12 · Physics · Medium
→In a closed system, the total charge is plus twelve coulombs. If one subsystem has total charge minus five coulombs, what is the charge of the rest of the system?
Class 12 · Physics · Easy
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