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What does a relay do? | StemPy Lab
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What does a relay do?
Physics
Medium
High School (9–10)
Electricity & Magnetism › Magnetic Effects of Current
Created by
StemPy Lab
What does a relay do?
It makes a weak sound louder
It changes AC into DC
A small current in an electromagnet switches a large current on or off
It measures a small current
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