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2. Which of the following is not a part of an electric circuit?
A. wire
B. transformer C. load
D. switch
3. Through what closed path does electric current flow?
A. battery
B. circuit C. resistor D. source
4. Which of the following statements is true of an electric circuit?
A. A circuit is like a fuse.
B. A circuit is protected by a switch.
C. Electricity flows in a closed circuit.
D. Electricity flows in a open circuit.
5. Which is a way of conserving electricity?
A. Using octopus connection
B. having the lights on while sleeping
C. turning off appliances when not in use
D. using incandescent bulbs instead of fluorescent lamps​