Two cylindrical conductors with equal cross-sections and different resistivites `rho_(1)` and `rho_(2)` are point end to end. Find the charge at the boundary of the conduction if a current `I` flows from conductor 1 to conductor 2

Two long straight cylindrical conductors with resistivities rho_(1)andrho_(2) repectively are joined together as shown in figure . The radius of each of the conductor is a . If a uniform total current I flows through the conductors , the magnitude of the total free charge at the interface of the two conductor is

Two rods having equal lengths and equal cross-sections but different specific resistances rho_(1)" and "rho_(2) are joined at one end as shown in the figure given above. What is the effective specific resistance of the combination ?

Consider a conductor of variable cross section in which current is flowing from cross section 1 to 2. Then

Consider a conductor of variable cross section in which current is flowing from cross section 1 to 2. Then

Resistivity of ideal conductor and ideal insulator are rho_(1) and rho_(2) respectively, then .....

If the potential difference across the ends of a conductor is doubled, the current flowing through it gets

If the potential difference across the ends of a conductor is doubled, the current flowing through it gets

A charge of 30 C passes through a conductor for 2 minutes. Find the current flowing through the conductor.