Flemings "Left hand Rule" is associated with the effect of
A. electric field on current
B. magnetic field on magnet
C. electric field on magnet
D. magnetic field on current
Answer: Option D
A. electric field on current
B. magnetic field on magnet
C. electric field on magnet
D. magnetic field on current
Answer: Option D
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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