The amount of electric charge flowing through electric circuit in 10 minutes is 300 coulombs. Find the electric current drawn by the filament of the electric bulb is?
A. 0.5 A
B. 0.2 A
C. 5 A
D. 2 A
Answer: Option A
A. 0.5 A
B. 0.2 A
C. 5 A
D. 2 A
Answer: Option A
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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