The ’loop rule’ is

Question

a) A rule that is used in addition to Kirchhoff’s rules for circuits containing loops of wire

b) One of Kirchhoff’s rules that involves potential differences

c) One of Kirchhoff’s rules that involves currents

d) A rule that can’t be used for circuits with capacitors

e) None of the above.

Answer 1

Kirchhoff's loop rule states that the sum of all the electric potential differences around a loop is zero.

In other words,

Sum of V_sources = Sum of V_{drop from all the resistors in the loop}

Thus, the answer is B.