The electric motor transforms . . . . . . . .
A. Mechanical energy into electrical energy
B. Thermal energy into electrical energy
C. Electrical energy into mechanical energy
D. Radiation energy into electrical energy
Answer: Option C
A. Mechanical energy into electrical energy
B. Thermal energy into electrical energy
C. Electrical energy into mechanical energy
D. Radiation energy into electrical energy
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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