174k views
1 vote
In an electrical circuit, which of the following controls whether or not electrons flow through the circuit?

A. a switch
B. a battery
C. a resistor
D. a light bulb

2 Answers

1 vote
Letter A is the correct answer
User Crandrad
by
6.4k points
4 votes
A a switch...........
User Kershaw
by
6.0k points