Components A,B,and C are connected in series.Component D is connected in parallel to component B.Which of the following statements is true?
A)The system works only if A works,B or C works,and D works.
B)Component B must work for the system to work.
C)The system works when A works,C,works,and either B or D works.
D)Components B and C are backups to A.
E)The system works if D works,and any of A,B,or C works.

Question

Quizplus · Accepted Answer

In a series circuit, the current flows through each component in sequence, so for the circuit to work, all the components must work. Therefore, A and C both have to work, but component B can be substituted by component D since it is connected in parallel. This means that as long as either B or D works, the circuit will still work. Hence, the system works when A works, C works, and either B or D works.

Components A,B,and C Are Connected in Series