Battery connection & cube

Make the appropriate connection in the meter bridge set up shown. Resistance box is connected between____. Unknown resistance is connected between_____. Battery is connected between_______.

Figure shows a cube made from twelve uniform wires. Find the magnetic field at the centre of the cube, if a battery is connected between the points A and H.

A parallel plate capacitor is connected across a battery. Now, keeping the battery connected, a dielectric slab is inserted between the plates. In the process,

A thermocouple is made of Cu and Fe . If a battery is connected in it, then

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega connected to the same battery, the current observed in the circuit is 0.3 A. Then the internal resistance of te battery is

A 100V battery is connected between A & B. The sum of all possible vales of current supplied by the battery to the circuit is "_____________"

In the given network, if an ideal battery is connected between points A and B, a current i_1=5.6A flows through the battery. If the same battery is connected between points B and C, a current i_2=10.5A flows through the battery. The value of R_1/R_2=