Explain why an ordinary moving coil ammeter used for dc cannot be used to measure ac current
Answers
Answered by
0
Explanation:
an ordinary moving coil ammeter used of dc cannot be used to measure an alternating current sven if its frequency is low. ... In this case, the deflection is a result of the heat produced which in turn is proportional to the square of the current. Since this is ALWAYS positive for AC and DC, either can be used.
Similar questions