Question

Which statement is true?

a) a resistor alters current, and a switch turns current on and off
b) a resistor measures voltage, and a switch changes AC to DC or DC to AC
c) a resistor alters current, and a switch measures voltage
d) a resistor changes AC to DC or DC to AC, and a switch turns current on and off

Answer 1

on your phone,
1) switch -> what happends when you press the power switch?
2) resistor -> what happens when you increase or decrease the volume?

Answer 2

a) a resistor alters current, and a switch turns current on and off