PMMC उपकरणों में प्रयुक्त मीटर मूवमेंट सामान्यतः नाजुक होता है क्योंकि इसमें शामिल होता है:

In a moving iron instrument, the deflecting torque (θ) produced is proportional to the:

In a voltmeter, if the multiplier resistance becomes open-circuited, the meter will:

The pointer of an analog meter does not return to zero when the electrical supply is removed. This indicates a fault in the: