Question

As more branches are added to a parallel circuit, the overall resistance of the circuit does which of the following?. A) remains the same.B) definitely decreases.C) definitely increases.D) may increase.E) may decrease.

Answer 1

since

1/R = 1/r1 + 1/r2 + ...
the more parallel resistances you add, the larger the sum on the right grows.

Since 1/R is that sum, as 1/R grows, R shrinks.

Answer 2

me as well