Cambridge Secondary (7-9). Stage 7. MCE Science. Workbook - Unit 12: Electricity - Question 40

A Class 7 student builds a series circuit that contains a battery, a buzzer, an ammeter and a switch. Tick (✓) the two phrases that could complete the following sentence.

Adding more components in series to a circuit ___.

A. decreases current
B. decreases resistance
C. increases current
D. increases resistance