Moving Iron Type Instruments The general principle of working of [...]

The permanent magnet moving coil (PMMC) instrument is the most [...]

Damping Force When a deflecting force is applied to the [...]

Controlling Force Controlling force. This force is required in an [...]

Deflecting Force (i) Magnetic effect Consider a current carrying conductor [...]

There are many ways in which instruments can be classified. [...]

Class F Commutation Figure 48 shows the class F commutation [...]

Class E commutation Figure 46 shows the class E commutation [...]