TS EAMCET · Physics · Electrostatics
Two positive point charges are separated by a distance of 4 m in air. If the sum of the two charges is \(36 \mu \mathrm{C}\) and the electrostatic force between them is 0.18 N , then the bigger charge is
- A \(30 \mu \mathrm{C}\)
- B \(18 \mu \mathrm{C}\)
- C \(20 \mu \mathrm{C}\)
- D \(16 \mu \mathrm{C}\)
Answer & Solution
Correct Answer
(C) \(20 \mu \mathrm{C}\)
Step-by-step Solution
Detailed explanation
Electrostatic force \(\mathrm{F}=\frac{\mathrm{K}_1 \mathrm{Q}_2}{\mathrm{r}^2}\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A conducting wire of cross-sectional area \(1 \mathrm{~cm}^2\) has \(3 \times 10^{23}\) charge carriers per \(\mathrm{m}^3\). If wire carries a current of \(24 \mathrm{~mA}\), then drift velocity of carriers isTS EAMCET 2020 Easy
- An amount of \(700 \mathrm{~J}\) of heat is transferred to a diatomic gas allowing it to expand with the pressure held constant. The work done on the gas isTS EAMCET 2022 Easy
- Two objects of masses \(200 \mathrm{~g}\) and \(500 \mathrm{~g}\) possess velocities \(10 \hat{\mathbf{i}} \mathrm{m} / \mathrm{s}\) and \(3 \hat{\mathbf{i}}+5 \hat{\mathbf{j}} \mathrm{m} / \mathrm{s}\) respectively. The velocity of their centre of mass in \(\mathrm{m} / \mathrm{s}\) is :TS EAMCET 2003 Easy
- A capillary tube of radius ' \(r\) ' is immersed in water and water rises to a height of ' \(h\) '. Mass of water in the capillary tube is \(5 \times 10^{-3} \mathrm{~kg}\). The same capillary tube is now immersed in a liquid whose surface tension is \(\sqrt{2}\) times the surface tension of water. The angle of contact between the capillary tube and this liquid is \(45^{\circ}\). The mass of liquid which rises into the capillary tube now is, (in \(\mathrm{kg}\) )TS EAMCET 2013 Medium
- A steel rod has radius and length . It is stretched along its length with a force of . This causes an elongation of . Find the (approximate) Young's modulus of steel from this information.TS EAMCET 2018 Medium
- In a meter bridge the resistances \(R\) and \(S\) are such that the null point is found at a distance of \(40 \mathrm{~cm}\) from one end. If a resistance of \(10 \Omega\) is connected in parallel with shunt \(S\), then the null point occurs at \(90 \mathrm{~cm}\) from the same end. The values of the two resistances \(R\) and \(S\) respectively areTS EAMCET 2020 Hard
More PYQs from TS EAMCET
- A primary coil and secondary coil are placed close to each other. A current, which changes at the rate of \(25 \mathrm{~A}\) in a millisecond, is present in the primary coil. If the mutual inductance is \(92 \times 10^{-6} \mathrm{H}\), then the value of induced emf in the secondary coil isTS EAMCET 2012 Easy
- In a photoelectric experiment three different lights are incident on a metal of work function \(1.5 \mathrm{eV}\). Light \(A\) is \(200 \mathrm{~nm}\) wavelength with intensity \(1.8 \mathrm{~W} / \mathrm{m}^2\), light \(B\) is \(400 \mathrm{~nm}\) with \(1 \mathrm{~W} / \mathrm{m}^2\) and light \(C\) is \(600 \mathrm{~nm}\) with \(0.5 \mathrm{~W} / \mathrm{m}^2\). The current versus voltage is measured. Which graphs correspond to which light?
TS EAMCET 2021 Easy - When a current ' \(\mathrm{i}\) ' through a solenoid is increasing at a constant rate then the induced current isTS EAMCET 2023 Easy
- A block of mass \(\sqrt{2} \mathrm{~kg}\) is placed on a rough horizontal surface. A force ' \(F\) ' acting upwards at an angle of \(45^{\circ}\) with the horizontal causes the block to start motion. If the coefficient of static friction between the surface and the block is 0.25, the magnitude of the force ' \(F\) ' is
(Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )TS EAMCET 2025 Medium - The average energy of a neutron produced in the fission of \({ }_{92}^{235} \mathrm{U}\) isTS EAMCET 2025 Easy
- A mass \(M \mathrm{~kg}\) is suspended by a weightless string. The horizontal force required to hold the mass at \(60^{\circ}\) with the vertical isTS EAMCET 2014 Easy