Ohm's law describes the relation between . . . . . . . . and . . . . . . . .
A. Electric current, electric charge
B. Electric charge, time
C. Potential, electric current
D. Potential, electric charge
Answer: Option C
A. Electric current, electric charge
B. Electric charge, time
C. Potential, electric current
D. Potential, electric charge
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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