Which of the following laws deduces the expression for the force between two stationary point charges in vacuum or free space?
A. Len' Law
B. Coulomb's Law
C. Gauss' Law
D. Ohm's Law
Answer: Option B
A. Len' Law
B. Coulomb's Law
C. Gauss' Law
D. Ohm's Law
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
Join The Discussion