What physical quantities may $X$ and $Y$ represent ? ($Y$ represents the first mentioned quantity)
Pressure $v/s$ temperature of a given gas (constant volume)
Kinetic energy $v/s$ velocity of a particle
Capacitance $v/s$ charge to give a constant potential
Potential $v/s$ capacitance to give a constant charge
A $30\,\mu F$ capacitor is charged by a constant current of $30\, mA$. If the capacitor is initially uncharged, how long does it take for the potential difference to reach $400\, V$.....$s$
Assertion : The total charge stored in a capacitor is zero.
Reason : The field just outside the capacitor is $\frac{\sigma }{{{\varepsilon _0}}}$. ( $\sigma $ is the charge density).
Two conducting shells of radius $a$ and $b$ are connected by conducting wire as shown in figure. The capacity of system is :
A cylindrical capacitor has two co-axial cylinders of length $20 \,cm$ and radii $2 r$ and $r$. Inner cylinder is given a charge $10 \,\mu C$ and outer cylinder a charge of $-10 \,\mu C$. The potential difference between the two cylinders will be
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.....$sec$