The instrument that measures both ac and dc is called
A
A current balance
B
a moving coil ammenter
C
a moving iron ammeter
D
an inverter
Verified Correct Answer: C.
Physical Principles & Numerical Solution
A moving iron ammeter can measure both alternating current (AC) and direct current (DC) due to its design, which allows it to respond to the magnetic field created by both types of current.
Source: Myschool Past Questions Archive (Record #41389)