ICSE Class 8 Answered

The direction in which the dials of a kWh (kilowatt-hour) meter rotate depends on the type of meter and its manufacturer. However, the reason for having some dials rotate clockwise while others rotate counterclockwise is mainly for accuracy and ease of reading.

In analog dial meters, the rotation direction is often based on the layout of the dials and the mechanism inside. This layout can vary depending on the design preferences of different manufacturers. The direction of rotation doesn't affect the measurement accuracy; rather, it's simply a design choice.

The reason for having some dials rotate clockwise and others counterclockwise is to make it easier for the meter reader to determine the correct reading. By having dials rotate in different directions, it helps prevent misinterpretation, especially when dealing with multiple dials at once.