TS EAMCET · Physics · Capacitance
A \(4 \mu \mathrm{F}\) capacitor is charged by a \(200 \mathrm{~V}\) battery. It is then disconnected from the supply and is connected to another uncharged \(2 \mu \mathrm{F}\) capacitor. During the process, loss of energy (in \(\mathrm{J}\) ) is
- A \(3.43 \times 10^{-2}\)
- B \(2.67 \times 10^{-2}\)
- C \(2.67 \times 10^{-4}\)
- D \(3.43 \times 10^{-4}\)
Answer & Solution
Correct Answer
(B) \(2.67 \times 10^{-2}\)
Step-by-step Solution
Detailed explanation
Charge stored at the capacitor \(q=C_1 V_1=4 \times 200=800 \mu \mathrm{C}\) When this capacitor is connected with a uncharged capacitor, then common potential on both capacitors \(V=\frac{C_1 V_1+C_2 V_2}{C_1+C_2}=\frac{800+0}{4+2}=\frac{800}{6} \mathrm{~V}\) Loss in energy =…
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 laser beam has intensity \(2.1 \times 10^{15} \mathrm{~W} / \mathrm{m}^2\). The amplitude of magnetic field in the beam in approximately isTS EAMCET 2022 Easy
- The energy of an electron in the fourth excited state of the hydrogen atom isTS EAMCET 2022 Easy
- 37 g of ice at \(0^{\circ} \mathrm{C}\) temperature is mixed with 74 g of water at \(70^{\circ} \mathrm{C}\) temperature. The resultant temperature is (Specific heat capacity of water \(=1 \mathrm{cal}^{-1}{ }^{\circ} \mathrm{C}^{-1}\) and latent heat of fusion of ice \(=80 \mathrm{cal} \mathrm{g}^{-1}\) )TS EAMCET 2024 Easy
- Find the current in the circuit.
TS EAMCET 2020 Easy - A bus moving on a level road with a velocity \(v\) can be stopped at a distance of \(x\), by the application of a retarding force \(F\). The load on the bus is increased by \(25 \%\) by boarding the passengers. Now, if the bus is moving with the same speed and if the same retarding force is applied, the distance travelled by the bus before it stops isTS EAMCET 2014 Hard
- A long solenoid has turns per cm. A small loop of area is placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from to in , what is the magnitude of the induced emf in the loop while the current is changing?TS EAMCET 2022 Medium
More PYQs from TS EAMCET
- The additional energy that should be given to an electron to reduce its de-Broglie wavelength from \(1 \mathrm{~nm}\) to \(0.5 \mathrm{~nm}\) isTS EAMCET 2023 Medium
- Choose the incorrect statement from the following.TS EAMCET 2018 Easy
- The natural frequency of an \(L-C\) circuit is \(1,25,000 \mathrm{cycle} / \mathrm{s}\). Then the capacitor \(C\) is replaced by another capacitor with a dielectric medium of dielectric constant \(K\). In this case, the frequency decreases by \(25 \mathrm{kHz}\). The value of \(K\) isTS EAMCET 2007 Medium
- A convex lens of focal length 25 cm and made of glass with refractive index 1.5 is immersed in water. The absolute change in focal length of the glass is [Use refractive index of water = \(\frac{4}{3}\) ]TS EAMCET 2022 Medium
- The work done in blowing a soap bubble of volume \(V\) is \(W\). The work done in blowing the bubble of volume \(2 V\) from the same soap solution isTS EAMCET 2024 Medium
- The relation between the current \(i\) (in ampere) in a conductor and the time \(t\) (in second) is \(i=12 t+9 t^2\). The charge passing through the conductor between the times \(t=2 \mathrm{~s}\) and \(t=10 \mathrm{~s}\) isTS EAMCET 2024 Easy