How can you test to see if there is a current running through a wire?
A. place bar magnets around the wire
B. place several dry cells around the wire
C. play several compasses around the wire
D. send carefully to see if you hear a buzzing sound
(please help me!)
A. place bar magnets around the wire
B. place several dry cells around the wire
C. play several compasses around the wire
D. send carefully to see if you hear a buzzing sound
(please help me!)
Answers & Comments
Answer:
A because
Explanation:
Moving magnetic fields pull and push electrons. Metals such as copper and aluminum have electrons that are loosely held. Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.
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Answer:
a and b
please answer one of them