- #1
physninj
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Homework Statement
1. If the electric field is zero at a point, the potential must also be zero at that point
2. If the electric potential is zero in some region of space, then the electric field must also be zero in that region.
3. If the electric field is zero in some region of space, then the electric potential must also be zero in that region.
4. Electric field lines point towards regions of lower potential
5. the value of electric potential can be chosen to be zero at any convenient point in spave
6. The capacitance of a conductor is defined to be the total amount of charge it can hold.
7. The capacitance of a parallel-plate capacitor depends on the voltage difference between
the plates.
8. The equivalent capacitance of two capacitors in series is less than that of either
capacitor.
9. Since V is energy per unit charge, the total energy in a capacitor is QV.
10. Electrostatic energy can exist in space even if there are no charges or mass in that space.
The Attempt at a Solution
1. F because if the point is perfectly between two E-fields potential is doubled
2. ? I don't understand when they start talking about regions of space
3. ?
4. T
5. T
6. F
7. F
8. T
9. T
10. T
Numbers 2 and 3 are where I feel like I'm at a loss. If you disagree with the rest then I may need help there too but I'm reasonably confident. Thank you for any help :)