Batteries

Shown n batteries connected to form a circuit. The resistances denote the internal resistances of the batteries which are related to the emf as r_(i)=k(epsilon)_(i) where K is a constant. The solid dots represent the terminals of the batteries. Find (a)the current through the circuit and (b) the potential difference between the terminals of the ith battery.

Write the cell reactions which occur in lead storage battery (i) when the battery is in use and (ii) when the battery is on charging.

Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is

Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is

In following diagram boxes may contain resistor or battery or any other element then determine in each case (a) E.M.f. of battery (b) Battery is acting as a source or load (c) Potential difference across each battery

Assertion : Potential difference across the terminals of a battery is always less than the emf of the battery. Reason : During discharging of a battery potential differnce across to terminals of a battery is V = E -ir therefore V lt E

Statement I: Internal resistance of a battery is drawn parallel to a battery in electical circuit. Statement II: Heat generated in a battery is due to internal resistance.

A 50 V battery is supplying current of 10 A when connected to a resistor. If the efficiency of the battery at this current is 25%, then the internal resistance of the battery is

Battery is a small _____________ of electricity.

Battery is a collection of cells connected in