A cylindrical solid of length L and radius a is connected across a source of emf V and negligible internal resistance shown in figure. The resistivity of the rod at point P at a distance x from left end is given by `rho=bx` (where b is a positive constant). Find the electric field at point P.

A cell E_1 of emf 6V and internal resistance 2 Omega is connected with another cell E_2 of emf 4V and internal resistance 8 Omega (as shown in the figure). The potential difference across points X and Y is :

A conductor of resistivity rho and resistance R, as shown in the figure, is connected across a battery of emf V. Its radius varies from a at left end to b at right end. The electric field at a point P at distance x from left end of it is

A conductor of resistivity rho and resistance R, as shown in the figure, is connected across a battery of emf V. Its radius varies from a at left end to b at right end. The electric field at a point P at distance x from left end of it is

A 10 V cell of negligible internal resistance is connected in parallel across a battery of emf 200 V and internal resistance 38 Omega as shown in the figure. Find the value of current in the circuit.

A cylindrical conductor AB of length l and area of cross-section a is connected to a battery having emf E and negligible internal resistance. The specific conductivity of cylindrical conductor varies as sigma = sigma_(0) (1)/(sqrt(x)) , where sigma_(0) is constant and x is distance from end A. What is the electric field just near the end B of cylinder?

Find the equivalent resistance of the network shown in figure between points A and B. where k is a positive constant.

A long cylindrical conductor of cross-sectional area A and radius a is made of material whose resistivity depends only on a distance r from the axis of conductor, given by rho = c/r^(2) , where c is a constant. Find the resistance per unit length of the conductor and the electric field strength due to which a current I flows in it.

A 5 V battery of negligible internal resistance is connected across a 200 V battery and a resistance of 39 Omega as shown in the figure. Find the value of the current.

A 5 V battery of negligible internal resistance is connected across a 200 V battery and a resistance of 39 Omega as shown in the figure. Find the value of the current.