Domestic electrical wiring is basically a
A. Series connection
B. Parallel connection
C. Combination of series and parallel connections
D. Series connection within each room and parallel connective elsewhere
Answer: Option B
A. Series connection
B. Parallel connection
C. Combination of series and parallel connections
D. Series connection within each room and parallel connective elsewhere
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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