If there is an increase in current in a circuit with 5 ohms resistance, the voltage-
A. will decrease
B. will increase
C. will remain the same
D. will be zero
Answer: Option B
A. will decrease
B. will increase
C. will remain the same
D. will be zero
Answer: Option B
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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