36. What is the function of an integrated circuit in an electrical circuit?
a) To amplify signals
b) To store electrical energy
c) To rectify current
d) To perform complex functions
Answer: d) To perform complex functions
37. What is the symbol for a battery in a circuit diagram?
a) Straight line
b) Zigzag line
c) Circle
d) Arrow
Answer: c) Circle
38. Which component is used to provide a constant source of electrical energy?
a) Resistor
b) Capacitor
c) Battery
d) Transistor
Answer: c) Battery
39. What is the symbol for a voltage source in a circuit diagram?
a) Straight line
b) Zigzag line
c) Circle
d) Arrow
Answer: d) Arrow
40. Which component is used to create a potential difference in an electrical circuit?
a) Resistor
b) Capacitor
c) Battery
d) Transistor
Answer: c) Battery
