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Physics
Alternating current cannot be measured by D.C. ammeter because
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Q. Alternating current cannot be measured by $D.C.$ ammeter because
Haryana PMT
Haryana PMT 2008
Alternating Current
A
A.C. cannot pass through D.C. ammeter
18%
B
A.C. changes direction
19%
C
average value of current for complete cycle is zero
55%
D
D.C. ammeter will get damaged
8%
Solution:
Average value of $A.C$. for complete cycle is zero. Hence $A.C$. can not be measured by $D.C$. ammeter.