Technician a Says Needle Movement in a Three-Coil Gauge Is

question 14

Multiple Choice

Technician A says needle movement in a three-coil gauge is the result of the interaction of three electromagnets and the total field effect upon a permanent magnet. Technician B says interaction of a permanent magnet and an electromagnet, and the total field effect causes the needle movement in the d'Arsonval gauge. Who is correct?

• A) Technician A only
• B) Technician B only
• C) Both Technician A and B
• D) Neither Technician A nor B

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