
A long copper wire carries a current of . If the cross section of the wire is and the resistivity of copper is . The force experienced by moving electron in the wire is _____
(Charge of electron )


Important Questions on Electrostatics
A long cylindrical volume contains a uniformly distributed charge of density . The electric field inside the cylindrical volume at a distance from its axis is _____ .


As shown in the figure, in steady state, the charge stored in the capacitor is _____.




(Given Capacitance of capacitor with air as medium between plates.)

A uniform electric field is created between two parallel plates of length as shown in figure, (where mass of electron and charge of electron). An electron enters the field symmetrically between the plates with a speed of . The angle of the deviation of the path of the electron as it comes out of the field will be _____ .
