Why does the core of a transformer is laminated?
A. To increase the electrical conductivity of the core
B. To increase the magnetization of the core
C. To reduce the eddy current loss
D. To increase current and improve efficiency
Answer: Option C
A. To increase the electrical conductivity of the core
B. To increase the magnetization of the core
C. To reduce the eddy current loss
D. To increase current and improve efficiency
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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