The property of electric current which is applicable in the fuse wire is
A. chemical effect of current
B. magnetic effect of current
C. heating effect of current
D. optical property of current
Answer: Option C
A. chemical effect of current
B. magnetic effect of current
C. heating effect of current
D. optical property of current
Answer: Option C
What will be the total resistance of the three 20-Ω coils connected in series?
A. 40 Ω
B. 20 Ω
C. 60 Ω
D. 800 Ω
Superconductors are substances which
A. conduct electricity at lower temperature
B. offer high resistance to the flow of current
C. offer not resistance to the flow of current
D. conduct electricity at high temperature
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