'थर्मोकपल एमीटर' (Thermocouple Ammeter) में मुख्य रूप से निम्नलिखित में से किस प्रभाव का उपयोग किया जाता है?

A major disadvantage of analog meters compared to digital meters is the:

The scale of moving iron instruments is non-linear (cramped at the lower end) because:

A voltage measuring instrument with high sensitivity requires: