Một điện trường đều E = 300V/m. Tính công của lực điện trường trên di chuyển điện tích q = 10nC trên quỹđạo ABC với ABC là tam giác đều cạnh a = 10cm như hình vẽ:

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.

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?