When the current drawn from the main wire is greater than 20A, due to overheating can cause of fire. What is this called?
A. Electric shock
B. Electricity loading
C. Over loading
D. Over heating
Answer: Option C
A. Electric shock
B. Electricity loading
C. Over loading
D. Over heating
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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