The force between the plates of a parallel plate capacitor of capacitance $C$ and distance of separation of the plates $d$ with a potential difference $V$ between the plates, is
Medium
Download our app for free and get started
(a) Total electric field between the plates of the capacitor$:$
$E_{T}=\frac{V}{d}$
Then, electric field due to only one plate$:$
$E_{1}=\frac{V}{2 d}$
$\therefore$ force of one plate on another$:$
$F=E_{1} \times Q F=E_{1} \times C V=\frac{V}{2 d} \times C V=\frac{C V^{2}}{2 d}$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1$27$ identical drops are charged at $22\, V\,\,each.$ They combine to form a bigger drop. The potential of the bigger drop will be............ $V.$View Solution
- 2View SolutionConsider the points lying on a straight line joining two fixed opposite charges. Between the charges there is
- 3If the charge on a capacitor is increased by $2C$, the energy stored in it increases by $44 \%$. The original charge on the capacitor is (in $C$ )View Solution
- 4A capacitor of capacitance $50 \; pF$ is charged by $100 \; V$ source. It is then connected to another uncharged identical capacitor. Electrostatic energy loss in the process is $\dots \; nJ$.View Solution
- 5If $4 \times {10^{20}}eV$ energy is required to move a charge of $0.25$ coulomb between two points. Then what will be the potential difference between them......$V$View Solution
- 6If the electric potential of the inner metal sphere is $10$ $ volt$ $\&$ that of the outer shell is $5$ $volt$, then the potential at the centre will be ......$volt$View Solution
- 7If the potential at the centre of a uniformly charged hollow sphere of radius $R$ is $V$ then electric field at a distance $r$ from the centre of the sphere is $(r > R)$View Solution
- 8A spherical drop of mercury having a potential of $2.5\, V$ is obtained as a result of merging $125$ droplets. The potential of constituent droplets would be........$V$View Solution
- 9Three infinitely long linear charges of charge density $\lambda $ , $\lambda $ and $-2\lambda $ are placed in space. A point in space is specified by its perpendicular distance $r_1 , r_2 $ and $ r_3$ respectively from the linear charges. For the points which are equipotentialView Solution
- 10Three capacitors $2,\, 3$ and $6\ \mu F$ are joined in series with each other. What is the minimum effective capacitance......$\mu \,F$View Solution