Current Electri...

The equivalent resistance between the points A and B is:

What will be the effective resistance between the points P and Q in the following circuit

The $$V-I$$ graph for a conductor at temperature $$T_{1}$$ and $$T_{2}$$ are as shown in figure. The term $$(T_{2}-T_{1})$$ is proportional to:

$$9$$ Identical wires each of Resistance $$R$$ are connected to form a closed polygon. The equivalent resistance between the ends of any side is

$$AB$$ is part of a circuit as shown, that absorbs energy at a rate of $$50 \ W$$. $$E$$ is an electromotive force device that has no internal resistance.

Potentiometer is based on

Two cells each of electromotive force $$E$$ and internal resistance $$r$$ are concerned in parallel across the resistance $$R$$. The maximum energy given to the resistor per second if:

In wheatstone's bridge $$P = 9$$ ohm, $$ R = 4 $$ ohm and $$ S = 6 $$ ohm. How much resistance must be put in parallel to the resistance S to balance the bridge?

Two identical batteries, each of electromotive force $$2 V$$ and internal resistance $$r = 1 \Omega$$ are connected as shown. The maximum power that can be developed across $$R$$ using these batteries is:

$$n$$ identical cells each of electromotive force $$e$$ and internal resistance $$r$$ are connected in series of this combination. The current through $$V$$ is: