Three capacitors of capacitance $1\ \mu F$, $2 \ \mu F$ and $3\ \mu F$ are connected in series and a potential difference of $11 V$ is applied across the combination. Then, the potential difference across the plates of $1\ \mu F$ capacitor is......$V$
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Two parallel large thin metal sheets have equal surface charge densities $\left(\sigma=26.4 \times 10^{-12} C / m ^{2}\right)$ of same signs. The electric field between these sheet is
The diagram shows a small bead of mass $m$ carrying charge $q$. The bead can freely move on the smooth fixed ring placed on a smooth horizontal plane. In the same plane a charge $+Q$ has also been fixed as shown. The potential atthe point $P$ due to $+Q$ is $V$. The velocity with which the bead should projected from the point $P$ so that it can complete a circle should be greater than
A $500\,\mu F$ capacitor is charged at a steady rate of $100\, \mu C/sec$. The potential difference across the capacitor will be $10\, V$ after an interval of.....$sec$
In the $RC$ circuit shown, switch is closed at $t = 0$ . Graphs showing variation of potential $(V_R)$ across resistor and potential $(V_C)$ across capacitor are given. Time constant of circuit is approximately equal to.....$ms$
The given figure shows, two parallel plates $A$ and $B$ of charge densities $+\sigma$ and $-\sigma$ respectively. Electric intensity will be zero in region