Respuesta :
Answer:
An electric chemical cell is not always needed to have a power circuit. But every other part is.
ANSWER:
an electrochemical cell
an electrochemical cell is not needed to function electric circuits, but the others are needed because an energy source powers the circuit, conducting wires pass electricity throughout the circuit, and a resistant device helps conserve the electricity that is passing through. hope this helps!!
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an electrochemical cell
an electrochemical cell is not needed to function electric circuits, but the others are needed because an energy source powers the circuit, conducting wires pass electricity throughout the circuit, and a resistant device helps conserve the electricity that is passing through. hope this helps!!
-best of luck!!
support me by marking as brainliest :)