Ohm's law states the relation between . . . . . . . . and . . . . . . . .
A. potential difference, electric charge
B. electric current, electric charge
C. electric charge, time
D. potential difference, electric current
Answer: Option D
A. potential difference, electric charge
B. electric current, electric charge
C. electric charge, time
D. potential difference, electric 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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