Exams › NEET › Physics

Which of the following statement are true?

1. Charge \( q_{3} \) applies a large force on charge \( q_{2} \) than on charge \( q_{1} \)
2. Charge \( q_{3} \) applies a smaller force on charge \( q_{2} \) than on charge \( q_{1} \)
3. Charge \( q_{3} \) applies equal force on bothy the charges.
4. Charge \( q_{3} \) applies no force on any of the charges.

Correct answer: Charge \( q_{3} \) applies a smaller force on charge \( q_{2} \) than on charge \( q_{1} \)

Solution

By Coulomb’s law, the magnitude of force between two charges is proportional to 1/r^2. Since q2 is farther from q3 than q1, q3 exerts a smaller force on q2 than on q1.

Related NEET Physics questions

• Which of the following statements is not true about Gauss's law?
• A positive charge and a negative charge are held in place and initially form a dipole. Then a uncharged conducting bar is placed in between them. How is the force between the charges affected?
• The capacity of a parallel plate condenser is \( 10 \mu F \) without the dielectric. Material with a dielectric constant of 2 is used to fill half- thickness between the plates. The new capacitance is \( \mu F \)
• A point charge is brought in an electric field. The electric field at a nearby point: This question has multiple correct options
• Assertion A capacitor can be given only a limited quantity of charge Reason A capacitor is an arrangement which can store sufficient quantity of charge
• A soap bubble of radius \( 3 \mathrm{cm} \) is charged with surface charge density \( \sigma \) such that \( \frac{\sigma^{2}}{\epsilon_{0}}=0.4 S I \) units. The excess pressure inside the bubble in SI unit (surface tension of soap solution \( =3 \times \) \( 10^{-3} \mathrm{N} / \mathrm{m} \) ) is:

⚔️ Practice NEET Physics free + battle 1v1 →