The instrument that measures both a.c and d.c is?

Assessment: JAMB UTME - Physics - 2007 Subject: Physics

Question 1 Report

The instrument that measures both a.c and d.c is?
Answer Details
The instrument that measures both AC and DC is the "moving iron ammeter." This type of ammeter measures the average value of the current, and its design allows it to work for both AC and DC. The other options listed are not suitable for measuring both AC and DC.
Read lesson note on Current Electricity (JAMB)
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