Assertion: galvanometer's coil | /r/HasProperty | area per turn
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Source sentences:
text: Two moving coil galvanometers 1 and 2 are with identical field magnets and suspension torque constants, but with coil of different number of turns N 1 ​ and N 2 ​ , area per turn A 1 ​ and A 2 ​ , and resistance R 1 ​ and R 2 ​ .