2, A conductor that connects each part of the circuit.
A. CONNECTING WIRES
B. BULB HOLDER
C. SWITCH

3. It is a source of energy in a circuit A.CONNECTING WIRES
B.BULB HOLDER
C.SWITCH

4. Uses the electrical energy provided by the battery, but does not use current A.CONNECTING WIRES
B.BULB HOLDER
C.SWITCH

5. A device that holds a light bulb or lamp.
A.CONNECTING WIRES
B.BULB HOLDER
C.SWITCH ​