JEE Mains · Physics · STD 12 - 3. current electricity
As show in the figure, in steady state, the charge stored in the capacitor is....... \(\times 10^{-6}\,C\).

- A \(10\)
- B \(9\)
- C \(1\)
- D \(100\)
Answer & Solution
Correct Answer
(A) \(10\)
Step-by-step Solution
Detailed explanation
\(q = CV _{100 \Omega}\) \(=\left(1.1 \times 10^{-6}\right)\left(\frac{10}{ R + r } R \right)\) \(=1.1 \times 10^{-6}\left(\frac{10}{110} \times 100\right)\) \(=10\,\mu C\)
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
- \(n\) identical waves each of intensity \(I_0\) interfere with each other. The ratio of maximum intensities if the interference is \((i)\) coherent and \((ii)\) incoherent is :JEE Mains 2013 Medium
- A heat engine is involved with exchange of heat of \(1915\, J,\) \(-40\, J ,+125\, J\) and \(-Q\,J\), during one cycle achieving an efficiency of \(50.0 \%\). The value of \(Q\) is.......\(J\)JEE Mains 2020 Medium
- Match List-I with List-II.
Choose the correct answer from the options given below :List-I List-II A. Coefficient of viscosity I. \(\left[ ML ^{-1} T^{-2}\right]\) B. Surface tension II. \(\left[ ML ^2 T^{-2}\right]\) C. Pressure III. \(\left[ ML ^0 T^{-2}\right]\) D. Surface energy IV. \(\left[ ML ^{-1} T^{-1}\right]\) JEE Mains 2026 Hard - A thin convex lens and a thin concave lens are kept in contact and are co-axial. Which of the following statements is correct for this combination of two lenses ?JEE Mains 2026 Medium
- A galvanometer having a coil resistance of \(100\ \Omega\). gives a full scale deflection, when a currect of \(I\ mA\) is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale deflection for a current of \(10\ A\), is :......\(Ω\)JEE Mains 2016 Medium
- A mirror is used to produce an image with magnification of \(\frac{1}{4}\). If the distance between object and its image is 40 cm , then the focal length of the mirror is ________JEE Mains 2025 Hard
More PYQs from JEE Mains
- Let \(\mathrm{g}: \mathrm{N} \rightarrow \mathrm{N}\) be defined as \(g(3 n+1)=3 n+2\) \(g(3 n+2)=3 n+3\) \(g(3 n+3)=3 n+1, \text { for all } n \geq 0\) Then which of the following statements is true?JEE Mains 2021 Hard
- The two light beams having intensities I and 9I interfere to produce a fringe pattern on a screen. The phase difference between the beams is \(\frac{\pi}{2}\) at point \(P\) and \(\pi\) at point \(Q\). Then the difference between the resultant intensities at \(P\) and \(Q\) will be.......\(I\)JEE Mains 2022 Medium
- A car is moving on a horizontal curved road with radius \(50\,m\). The approximate maximum speed of car will be \(............\,ms^{-1}\), if friction between tyres and road is \(0.34.\left[\right.\) Take \(\left.g =10 ms ^{-2}\right]\)JEE Mains 2023 Medium
- A velocity selector consists of electric field \(\overrightarrow{ E }= E \hat{ k }\) and magnetic field \(\overrightarrow{ B }= B \hat{ j }\) with \(B =12 mT\). The value \(E\) required for an electron of energy \(728 eV\) moving along the positive \(x\)-axis to pass undeflected is: (Given, , ass of electron \(=9.1 \times 10^{-31} kg\) )JEE Mains 2022 Hard
- Let \(L_1, L_2\) be the lines passing through the point \(\mathrm{P}(0,1)\) and touching the parabola \(9 x^2+12 x+18 y-14=0\). Let \(Q\) and \(R\) be the points on the lines \(\mathrm{L}_1\) and \(\mathrm{L}_2\) such that the \(\triangle \mathrm{PQR}\) is an isosceles triangle with base \(\mathrm{QR}\). If the slopes of the lines \(Q R\) are \(m_1\) and \(m_2\). then \(16\left(m_1^2+m_2^2\right)\) is equal to ..............JEE Mains 2024 Hard
- The length of the perpendicular from the point \((2, -1, 4)\) on the straight line, \(\frac{{x + 3}}{{10}} = \frac{{y - 2}}{{ - 7}} = \frac{z}{1}\) isJEE Mains 2019 Hard