When resistances are connected in parallel, their equivalent resistance is equal to? The resistance of wire is directly propotional to its _________? If two resistors of 6 kΩ and 4 kΩ are connected in series across a 10 V battery, then find the equivalent resistance of the series combination? Into which energy, the iron converts heat energy generated in a resistance? What is the single resistance called that is equal to the combination of resistances connected in series? Two resistances of 2 kΩ and 8 kΩ are joined in series, if a 10 V battery is connected across the ends of this combination, find the equivalent resistance of the series combination?