The process of electric current doing work is to convert electric energy into electricity______ How much energy is consumed______ The current does work through the electric lamp, and the electric energy is converted into energy______ Energy; electricity is converted into electricity by doing work through an electric motor______ Electric energy is converted into electricity by doing work through an electric heater______ Energy. Watt hour meter, which is used to measure energy______ It's a good instrument

The process of electric current doing work is to convert electric energy into electricity______ How much energy is consumed______ The current does work through the electric lamp, and the electric energy is converted into energy______ Energy; electricity is converted into electricity by doing work through an electric motor______ Electric energy is converted into electricity by doing work through an electric heater______ Energy. Watt hour meter, which is used to measure energy______ It's a good instrument


The process of current doing work is the process of converting electric energy into other forms of energy. How much electric energy is consumed, how much work is done by current, and how much other forms of energy are converted. When current flows through the electric lamp, it consumes electric energy and obtains internal energy and light energy, so electric energy is converted into internal energy and light energy. When current passes through the motor, it consumes electric energy and obtains mechanical energy, so it converts electric energy into mechanical energy When the electric current passes through the electric heater, it consumes the electric energy and gets the internal energy, so it converts the electric energy into the internal energy. The electric energy meter is an instrument used to determine the amount of electric energy consumed in the circuit



When an electric oven works normally for 0.5h, the current is 1.08 * 10 sixth power J. what is the resistance?


1080000/(0.5*3600)=600W
If u = 220 V
R = 220 * 220 / 600 = 80.667 Ω



The working voltage of a fan is 1.2 V and the current is 50 ma. If it works normally for 0.5 h, what is the work done by the current and what is the energy consumed?


Power: P = UI = 1.2V × 0.05A = 0.06w
Power consumption: power × time = 0.06w × 0.5h = 0.03wh
Current work: w = Pt = 0.06 w × (0.5 × 3600) s = 108 J



When a TV works normally, its power is 200W. If it is used for 5h every day, how many kwh does the TV consume every 30 days


Daily power consumption: 200W * 5h = 1KW
Power consumption every 30 days: 1kW * 30 = 30KW