The d'Arsonval movement is one of the most common ______ meter movements.

The d'Arsonval movement is one of the most common ______ meter movements.

• A. Analog
• B. Inductive
• C. Digital
• D. Mechanical

Answer: (A)

The d'Arsonval movement is a moving-coil galvanometer design used in analog meter indications. It converts electrical current into a proportional mechanical deflection of a pointer on a dial. In this setup, a coil sits in a permanent magnet field; as current flows, the coil experiences torque and rotates, and a restoring spring balances the torque so the pointer deflects in proportion to the current. Because the reading is a continuous position on a dial, this type of movement is characteristic of analog meters. It isn’t digital, which would display discrete numeric digits, and while it is a physical mechanism, its defining feature here is the continuous, analog response rather than a digital readout or a different movement-type classification.

The d'Arsonval movement is a moving-coil galvanometer design used in analog meter indications. It converts electrical current into a proportional mechanical deflection of a pointer on a dial. In this setup, a coil sits in a permanent magnet field; as current flows, the coil experiences torque and rotates, and a restoring spring balances the torque so the pointer deflects in proportion to the current. Because the reading is a continuous position on a dial, this type of movement is characteristic of analog meters. It isn’t digital, which would display discrete numeric digits, and while it is a physical mechanism, its defining feature here is the continuous, analog response rather than a digital readout or a different movement-type classification.