The reciprocal of equivalent resistance connected in parallel is the __________ of reciprocal of individual resistances.

Correct option is C

The correct answer is (c) Sum.
· When resistances are connected in parallel, the reciprocal of the equivalent resistance is equal to the sum of the reciprocals of the individual resistances. Mathematically, this is expressed as:
=
Information Booster:
· Difference: Not applicable here, as parallel resistance calculations involve addition.
· Sum of squares: Not relevant to calculating equivalent resistance in parallel circuits.
· Product: Used in calculating equivalent resistance for series connections only under specific formulas but not directly for parallel circuits.