In electrical motor
A. heat is converted into electrical energy
B. electrical energy is converted into heat
C. electrical energy is converted into mechanical energy
D. mechanical energy is converted into electrical energy
Answer: Option C
A. heat is converted into electrical energy
B. electrical energy is converted into heat
C. electrical energy is converted into mechanical energy
D. mechanical energy is converted 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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