(a) an electron in a television tube travels the 12 cm distance from the grid to the screen at an average speed of 2.00 107m/s. how long does the trip take? s (b) an electron in a current-carrying wire travels at an average speed of 7.00 10-5 m/s. how long does it take to travel 12 cm?

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.