1. A pint charge of 1.26*10^10c is moved by an external agent through an electric field from point A at an electric potential of 6.32 volts to 12.4 volts. this particle begins and ends at rest. how much work was done by the agent?
2. Show that IA = I (1+ R/ RV) show that for I to be with in 1% of IA, RV must be greater than 100R. the resistance of the DVM is 10^7 ohms. what is the percent difference between the value of R using I and IA?
3. When working on high voltage circuits, technicians are often advised to keep one hand behind their back. Why is an electric shock between your two hands more dangerous than a shock between two points on the same arm?