Each of the batteries shown in figure has an emf equal to 5 V. Show that the magnetic field B at the point P is zero for any set of values of the resistances .

Each of the batteries shown in figure has an emt equal to 10V .Find the magnetic field B at the point p .

Find the magnetic field B at the point P in figure

Find the magnetic field B at the point P in figure

In the figure shown below each battery has emf = 5 V. Then the magnetic field at P is

Each of the resistors shown in figure has a resistances of 10(Omega) and each of the batteries has an emf of 10V.Find the currents through the resistors a and b in the two circuits.