NEET Physics: Electric charges Conservation of charge Practice Questions

Q1. Consider a closed system where a charge is moved from region P to region Q. Which statement accurately describes the change in the total charge of the system?

• AThe change depends on the location of the charge
• BThe total charge remains unchanged
• CThe total charge decreases by the amount moved
• DThe total charge increases by the amount moved

Q2. If a system is completely insulated, the total electric charge within that system must:

• AIncrease
• BBecome zero
• CRemain unchanged
• DDecrease

Q3. Which of the following statements best describes the law of conservation of electric charge?

• ACharge can be destroyed during chemical reactions.
• BCharge is always transferred by magnetic fields.
• CCharge can be created from nothing in an isolated system.
• DThe net electric charge of an isolated system remains constant.

Q4. If a system consists of two identical isolated metal spheres in an empty region, what must be true regarding the total electric charge within the system?

• AThe total charge depends on the distance between the spheres
• BThe total charge is directly proportional to the separation distance
• CThe total charge must be conserved
• DThe total charge must be zero

Q5. In a system consisting of three bodies, A, B, and C, if the total charge of the system is zero, what must be true regarding the individual charges?

• AThe charges must be equal and opposite
• BThe sum of the individual charges must be zero
• CAll individual charges must be zero
• DThe charges must follow an arithmetic progression

Q6. When an electron moves from region A to region B, the charge in region A changes by Q, what must happen to the charge in region B for the total charge of the system to remain conserved?

• AThe charge in region B must change by -Q
• BThe charge in region B must remain unchanged
• CThe charge in region B must increase by Q
• DThe charge in region B must decrease by Q

Q7. Two point charges, +2μC and -3μC, are placed near each other in an isolated system. According to the law of conservation of charge, what must be true about the total charge in this system?

• AThe total charge must remain constant (equal to -1μC).
• BThe charges must repel each other.
• CThe interaction between the charges is negligible.
• DThe total charge must remain zero.

Q8. When two neutral objects are brought into physical contact, what is the resulting state of the charges on both objects?

• AThe charges repel each other
• BThe charges redistribute such that the total charge remains zero on each body
• CBoth objects acquire a net positive charge
• DBoth objects acquire an equal amount of negative charge

Q9. When two positive charges repel each other, what happens to the total charge of the system?

• AThe total charge decreases
• BThe total charge increases
• CThe total charge remains constant
• DThe total charge becomes negative

Q10. A neutral body is placed in an external electric field. If the body is allowed to acquire a net positive charge, what must happen to the surrounding space, assuming no charge is lost or gained by the body?

• AThe total charge in the universe changes
• BThe field lines must originate or terminate on the body
• CThe external field changes
• DThe net charge of the external field is affected

Q11. When two positive point charges are brought near each other, the total electric charge of the system remains constant. This principle is known as:

• AConservation of Charge
• BElectrostatic Equilibrium
• CCoulomb's Law
• DElectric Force Law

Q12. A certain amount of charge flows from object X to object Y. If object X is an insulator and object Y is a conductor, what is the implication for charge conservation?

• ACharge is lost during the transfer
• BCharge is conserved, transferring from X to Y
• CThe charge is dependent on the material property
• DCharge is created during the transfer

Q13. If a particle moves from a region with a net positive charge to a region with a net negative charge, the total charge of the universe remains conserved. What is the main concept applied here?

• AConservation of Charge
• BPrinciple of Superposition
• CCoulomb's Law
• DConservation of Momentum

Q14. The principle of conservation of electric charge states that:

• AThe net electric charge in an isolated system remains constant
• BCharge is always positive
• CCharge is transferred only through conduction
• DCharge can be created from nothing

Q15. If a positively charged particle enters an isolated conducting box and comes to rest, what happens to the total charge inside the box?

• AThe charge inside remains the same
• BThe charge inside decreases
• CThe charge inside becomes zero
• DThe charge inside increases