Apoint charge with charge q1 = 2.10 μc is held stationary at the origin. a second point charge with charge q2 = -4.70 μc moves from the point ( 0.105 m , 0) to the point ( 0.290 m , 0.245 m ). how much work w is done by the electric force on the moving point charge?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.