| A | B |
|---|
| How much work is needed to move a -8.6-microcoulomb charge from ground to a point whose potential is +75 V? | ??? |
| How much work is needed to move a proton from a point with a potential of +100 V to a point where it is -50 V? | ??? |
| How strong is the electric field between two parallel plates 5.2 mm apart if the potential difference between them is 220 V? | ??? |
| An electric field of 640 V/m is desired between two parallel plates 11.0 mm apart. How large a voltage should be applied? | ??? |
| Two parallel plates, connected to a 100-V power supply, are separated by an air gap. How small can the gap be if the air is not to exceed its breakdown value of E = 3 x 10^6 V/m? | ??? |
| What is the electric potential 15.0 cm from a 4.00-microcoulomb point charge? | ??? |
| A charge Q creates an electric potential of +125 V at a distance of 15 cm. What is Q? | ??? |
| What is the electric potential a distance of 2.5 x 10^-15 m away from a proton? | ??? |
