Two identical thin rings, each of radius R metres, are coaxially placed a distance R…
Physics · JEE Advanced · NTA Exams — Electrostatics
Two identical thin rings, each of radius R metres, are coaxially placed a distance R metres apart. If Q1 coul, and Q2 coul, are respectively the charges uniformly spread on the two rings, the work done in moving a charge from the centre of one ring to that of the other is
- zero
- \(\frac{\mathrm{q}\left(\mathrm{Q}_{1}-\mathrm{Q}_{2}\right)(\sqrt{2}-1)}{\left(4 \sqrt{2} \pi \varepsilon_{0} \mathrm{R}\right)}\)
- \(\frac{\mathrm{q} \sqrt{2}\left(\mathrm{Q}_{1}-\mathrm{Q}_{2}\right)}{\left(4 \pi \varepsilon_{0} \mathrm{R}\right)}\)
- \(\frac{\mathrm{q}\left(\mathrm{Q}_{1}+\mathrm{Q}_{2}\right)(\sqrt{2}+1)}{\left(4 \sqrt{2} \pi \varepsilon_{0} \mathrm{R}\right)}\)
Answer
(B) q ( Q _ 1 - Q _ 2 )( 2 -1) (4 2 _ 0 R )
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A proton and an α-particle are situated at r distance apart. At very large distance apart when released, the…
- A wire is bent in the form of a regular hexagon of side a and a total charge is distributed uniformly over…
- A parallel plate capacitor of plate area A and plate separation d is charged to potential difference V and…
- Seven capacitors each of capacitance 2 µF are connected in a configuration to obtain an effective capacitance…
- Three large plates A,B and C are placed parallel to each other and charges are given as shown below Then…
- A ring of charge with radius of 50 cm has gap of 0.002 π m. If the ring carries a charge of 1 C. What is the…
- A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential…
- A particle of specific charge (q/m) enters into uniform electric field E along the centre line, with velocity…
More Electrostatics questions · Browse all practice questions