Five identical capacitor plates are arranged such that they make capacitors each of $2\ \mu F$. The plates are connected to a source of $emf$ $10\ V$. The charge on plate $C$ is......$ \mu C$
Diffcult
Download our app for free and get started
Here four capacitors are in parallel and charge on each is $q=C V$. As the plate $C$
is the common plate between the two capacitors so its charge will be double, i.e,
$q=2 C V$ and it is conned to positive terminal of cell so its charge should be positive.
thus, $q=2 C V=2 \times 2 \times 10=40 \mu C$
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
- 1If the charge on a capacitor is increased by $2$ coulomb, the energy stored in it increases by $21\%$. The original charge on the capacitor is....$C$View Solution
- 2A $4\ \mu F$ capacitor, a resistance of $2.5 \,MW$$\Omega$ is in series with $12\, V$ battery. Find the time after which the potential difference across the capacitor is $3$ times the potential difference across the resistor.......$s$ [Given $ln(2)= 0.693$]View Solution
- 3Three large plates are arranged as shown. How much charge will flow through the key $k $ if it is closed?View Solution
- 4A resistance $R$ and a capacitance $C$ are connected in series to a battery of negligible internal resistance through a key. The key is closed at $t = 0$. If after $t\, sec$ the voltage across the capacitance was seven times the voltage across $R$, the value of $t$ isView Solution
- 5There is $10$ units of charge at the centre of a circle of radius $10\,m$. The work done in moving $1\, unit$ of charge around the circle once is...........$units$View Solution
- 6Four identical capacitors are connected in series with a $10\,V$ battery as shown. The point $N$ is earthed. The potentials of points $A$ and $B$ areView Solution
- 7The capacitance of a parallel plate capacitor is $C$ when the region between the plate has air. This region is now filled with a dielectric slab of dielectric constant $k$. The capacitor is connected to a cell of $emf$ $E$, and the slab is taken outView Solution
- 8Three capacitors $1, 2$ and $4\,\mu F$ are connected in series to a $10\,volt$ source. The charge on the plates of middle capacitor isView Solution
- 9View SolutionAn air capacitor is connected to a battery. The effect of filling the space between the plates with a dielectric is to increase
- 10A charge of $40\,\mu \,C$ is given to a capacitor having capacitance $C = 10\,\mu \,F$. The stored energy in ergs isView Solution