KirchhOFf's Laws||Series and Parallel Connections OF Resistances||Equivalent Resistance||Junction Potential

The equivalent resistance in series combination is

Kirchhoffs junction law is equivalent to

Combination of Resistance |Series and Parallel connection

(a) what is meant by series and parallel combination of resistances ? (b) in which case, series combination or parallel combination, the combined resistance is less than any of the individual resistances ? (c ) How should two resistance of 2 Omega each be connected so as to produce an equivalent resistance of 1 Omega ? In the circuit diagram given here , find: (i) total resistance of the circuit (ii) total current flowing in the circuit, and (iii) the potential difference across R_(1)

What is the ratio of equivalent resistance of series combination of n equal resistance to the equivalent resistance in parallel combination of these n resistances ?

The resistance 4R,16R,64R.... oo are connected in series. Find their equivalent resistance.