1. Which of the following refers to the number of charges passing through a wire per unit time? A Circuit B. Current C. Voltage D. Resistance 2. The unit of current is A Watt B. Ampere C. Volt D. Coulomb 3. It supplies energy in an electric circuit A Switch B. Voltage source C. Bulb D. Conducting wire 4. It is the opposition to the flow of electric charges as they travel through a conducting wire. A Current B. Circuit C. Voltage D. Resistance 5. Which of the following converts electrical energy into different forms of energy such as light, heat or sound in an electric circuit? A Switch B. Load C. Voltage source D. Conducting wire 6. What is the amount of current when 100 Coulombs of charges pass through a circuit in 10 seconds? A 0.1 A B. 1 A C. 10A D. 100 A 7. How does voltage affect current in the circuit? A. Increased voltage results in increased current. B. Increased voltage results in decreased current C. Decreased voltage results in increased current D. Increased voltage results in increased resistance 8. Which of the following is the correct statement of Ohm's Law? A Current is directly proportional to voltage and resistance B. Current is directly proportional to resistance and inversely proportional to voltage C. Current is directly proportional to voltage and inversely proportional to resistance D. Current is inversely proportional to voltage and directly proportional to resistance​