There are two metallic spheres of same radii but one is solid and the other is hollow, then
Solid sphere can be given more charge
Hollow sphere can be given more charge
They can be charged equally (maximum)
None of the above
According to Coulomb's Law, which is correct relation for the following diagram?
If two charges of $1$ coulomb each are placed $1 \,km$ apart, then the force between them will be ........... $N$
Charges $4Q$, $q$ and $Q$ and placed along $x$-axis at positions $x = 0,x = l/2$ and $x = l$, respectively. Find the value of $q$ so that force on charge $Q$ is zero
The plates $S$ and $T$ of an uncharged parallel plate capacitor are connected across a battery. The battery is then disconnected and the charged plates are now connected in a system as shown in the figure. The system shown is in equilibrium. All the strings are insulating and massless. The magnitude of charge on one of the capacitor plates is: [Area of plates = $A$]
Check that the ratio $ke ^{2} / G m _{ e } m _{ p }$ is dimensionless. Look up a Table of Physical Constants and determine the value of this ratio. What does the ratio signify?