A conducting wire is dropped along East-West direction, then
A. no emf is induced
B. no induced current flows
C. induced current flows from West to East
D. induced current flows from East to West
Answer: Option C
A. no emf is induced
B. no induced current flows
C. induced current flows from West to East
D. induced current flows from East to West
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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