A Galvanometer can be converted into a voltmeter by connecting with it a
A. high resistance in parallel
B. low resistance on parallel
C. high resistance on series
D. low resistance in series
Answer: Option C
A. high resistance in parallel
B. low resistance on parallel
C. high resistance on series
D. low resistance in series
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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