JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
The charge stored by the capacitor C in the given circuit in the steady state is _________ \(\mu C\).
- A \(12.5\)
- B 10
- C 7.5
- D 5
Answer & Solution
Correct Answer
(B) 10
Step-by-step Solution
Detailed explanation
\(i =2.5 / 5=0.5 A\)
\(V _{ c }=4 \times 0.5\) \(V_C=2 V\) charge \(Q=C V_c\) \(=5 \times 2\) \(=10 \mu C\)
\(V _{ c }=4 \times 0.5\) \(V_C=2 V\) charge \(Q=C V_c\) \(=5 \times 2\) \(=10 \mu C\)
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
- The ratio of vapour densities of two gases at the same temperature is \(\frac{4}{25}\), then the ratio of r.m.s. velocities will be:JEE Mains 2025 Easy
- A quantity \(f\) is given by \(f=\sqrt{\frac{{hc}^{5}}{{G}}}\) where \(c\) is speed of light, \(G\) universal gravitational constant and \(h\) is the Planck's constant. Dimension of \(f\) is that ofJEE Mains 2020 Medium
- One \(kg\) of water, at \(20\,^oC\), is heated in an electric kettle whose heating element has a mean (temperature averaged) resistance of \(20\, \Omega \). The rms voltage in the mains is \(200\, V\). Ignoring heat loss from the kettle, time taken for water to evaporate fully, is close to.......... \(\min\) [Specific heat of water \(= 4200\, J/kg\, ^oC\)), Latent heat of water \(= 2260\, k\,J/kg\)]JEE Mains 2019 Hard
- An engine of a train, moving with uniform acceleration, passes the signal-post with velocity \(u\) and the last compartment with velocity \(v\). The velocity with which middle point of the train passes the signal post isJEE Mains 2021 Medium
- A heavy iron bar of weight \(12 \mathrm{~kg}\) is having its one end on the ground and the other on the shoulder of a man. The rod makes an angle \(60^{\circ}\) with the horizontal, the weight experienced by the man is :JEE Mains 2024 Hard
- The refractive index of a prism with apex angle \(A\) is \(\cot A / 2\). The angle of minimum deviation is _______.JEE Mains 2024 Hard
More PYQs from JEE Mains
- A plane electromagnetic wave propagating along y-direction can have the following pair of electric field \((\vec{E} )\) and magnetic field \((\overrightarrow{ B })\) components.JEE Mains 2021 Medium
- A thin lens made of glass (refractive index \(= 1.5\)) of focal length \(f=16\; \mathrm{cm}\) is immersed in a liquid of refractive index \(1.42 .\) If its focal length in liquid is \(f_{l},\) then the ratio \(f_{l} /f\) is closest to the integerJEE Mains 2020 Hard
- A plane containing the point \((3, 2, 0)\) and the line \(\frac{{x - 1}}{1} = \frac{{y - 2}}{5} = \frac{{z - 3}}{4}\) also contains the pointJEE Mains 2015 Hard
- Let \(A=\left[\begin{array}{l}1 \\ 1 \\ 1\end{array}\right]\) and \(B=\left[\begin{array}{ccc}9^{2} & -10^{2} & 11^{2} \\ 12^{2} & 13^{2} & -14^{2} \\ -15^{2} & 16^{2} & 17^{2}\end{array}\right]\), then the value of \(A ^{\prime} BA\) is.JEE Mains 2022 Medium
- The system of linear equations \(x + \lambda y - z = 0,\lambda x - y - z = 0\;,\;x + y - \lambda z = 0\) has a non-trivial solution for:JEE Mains 2016 Medium
- A moving coil galvanometer has resistance \(50\,\Omega \) and it indicates full deflection at \(4\,mA\) current. A voltmeter is made using this galvanometer and a \(5\,k\Omega \) resistance. The maximum voltage, that can be measured using this voltamenter, will be close to ......\(V\)JEE Mains 2019 Medium