WBJEE · Physics · Capacitance
\(12 \mathrm{mC}\) and \(6 \mathrm{mC}\) charges are given to the two conducting plates having same cross-sectional area and placed face to face close to each other as shown in the figure. The resulting charge distribution in \(\mathrm{mC}\) on surface \(A, B, C\) and \(D\) are respectively,
- A \(9,3,-3,9\)
- B \(3,9,-9,3\)
- C \(6,6,-6,12\)
- D \(6,6,3,3\)
Answer & Solution
Correct Answer
(A) \(9,3,-3,9\)
Step-by-step Solution
Detailed explanation
Hint :
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
- When a certain metal surface is illuminated with light of frequency \(v\), the stopping potential for photoelectric current is \(V_{0}\). When the same surface is illuminated by light of frequency \(\frac{v}{2}\) the stopping potential is \(\frac{V_{0}}{4} .\) The threshold
frequency for photoelectric, emission isWBJEE 2012 Easy - The electric field of a plane electromagnetic wave of wave number \(k\) and angular frequency \(\omega\) is given by \(\vec{E}=E_0(\hat{i}+\hat{j}) \sin (k z-\omega t)\). Which of the following gives the direction of the associated magnetic field \(\vec{B}\) ?WBJEE 2023 Easy
- Electrons are emitted with kinetic energy \(T\) from a metal plate by an irradiation of light of intensity \(J\) and frequency v. Then, which of the following will be true?WBJEE 2019 Easy
- Consider a positively charged infinite cylinder with uniform volume charge density \(r > 0\). An electric dipole consisting of \(+Q\) and \(-Q\) charges attached to opposite ends of a massless rod is oriented as shown in the figure. At the instant as shown in the figure, the dipole will experience,
WBJEE 2023 Hard -
In a series LCR circuit, the rms voltage across the resistor and the capacitor are 30 V and 90 V respectively. If the applied voltage is \(50 \sqrt{2} \sin \omega t\), then the peak voltage across the inductor isWBJEE 2024 Easy - If a person can throw a stone to maximum height of \(\mathrm{h}\) metre vertically, then the maximum distance through which it can be thrown horizontally by the same person isWBJEE 2011 Medium
More PYQs from WBJEE
- Let \(\tan \alpha=\frac{a}{a+1}\) and \(\tan \beta=\frac{1}{2 a+1}\) then \(\alpha+\beta\) isWBJEE 2011 Medium
- If \(\left|\begin{array}{ccc}-1 & 7 & 0 \\ 2 & 1 & -3 \\ 3 & 4 & 1\end{array}\right|=A\). Then \(\left|\begin{array}{ccc}13 & -11 & 5 \\ -7 & -1 & 25 \\ -21 & -3 & -15\end{array}\right|\) is \begin{array}{l} \hline \end{array} \(\left(I_{3}\right.\) denotes the det of the identity matrix of order 3 )WBJEE 2018 Medium
- If the charge on a capacitor is increased by 2 coulomb, the energy stored in it increases by \(21 \%\). The original charge on the capacitor isWBJEE 2009 Hard
- The value of \(\Delta H\) for cooling 2 mole of an ideal monoatomic gas from \(225^{\circ} \mathrm{C}\) to \(125^{\circ} \mathrm{C}\) at constant pressure will be [given \(\left.C_{p}=\frac{5}{2} R\right]\)WBJEE 2014 Easy
- Consider the system of equations
\(\begin{array}{cc}
x+y+z & =0 \\
\alpha x+\beta y+\gamma z & =0 \\
\alpha^{2} x+\beta^{2} y+\gamma^{2} z & =0
\end{array}\)
Then the system of equations hasWBJEE 2013 Easy - The locus of points \((x, y)\) in the plane satisfying \(\sin ^2 x+\sin ^2 y=1\) consists ofWBJEE 2023 Hard