In a single phase energy meter, the pressure / voltage coil is wound on

• A. both the limbs of the laminated core with same turns
• B. the edges of the limb on the laminated core
• C. both the limbs of the laminated core with different turns
• D. the centre limb of the laminated core / the middle limb of the shunt magnet

Answer: (D)

A coil having large number of turns of fine wire is wound on the middle limb of the shunt magnet.
This coil is known as pressure or voltage coil and is connected across the supply mains.
The voltage coil produces a high ratio of inductance to resistance.