Hot wire ammeters are used for measuring

Question

Hot wire ammeters are used for measuring (A) A.C. only (B) D.C. only (C) both A.C. and D.C. (D) none of these

Tardigrade Admin · Accepted Answer

Hot wires ammeters uses the heating effect of current so it is all the same for both a.c. d.c. as heat generated is square function of current so even the sign in a.c. doesn't matter.

Q. Hot wire ammeters are used for measuring

A.C. only

D.C. only

both A.C. and D.C.

none of these

Hot wires ammeters uses the heating effect of current so it is all the same for both a.c. & d.c. as heat generated is square function of current so even the sign in a.c. doesn't matter.