Rated voltage: 220 V rated power: 500 W rated frequency: 50 Hz what resistance is used? What's the color of one ring of four-color ring? What's the color of two ring, three ring, four ring? Or what's the resistance?

Rated voltage: 220 V rated power: 500 W rated frequency: 50 Hz what resistance is used? What's the color of one ring of four-color ring? What's the color of two ring, three ring, four ring? Or what's the resistance?

Four color ring resistance: the first color ring is a ten digit, the second color ring is a single digit, the third color ring is a color power, and the fourth color ring is an error

If the voltage is only 200V, what is the actual power of the electric kettle?
Physics problems in Junior Three

PR = u * u, r = u * U / P = 220 * 220 / 1100 = 44 ohm
P=U*U/R=200*200/44=909W

When a substation uses 1100 V voltage to transmit power, the electric power loss of the conductor is 20% of the output power. If the electric power loss of the conductor is 5% of the output power, the output voltage strain is 0______ V

According to the power loss P loss = I2R, the electric power loss of the conductor is 20% of the output power. If the electric power loss of the conductor is 5% of the output power, the transmission current must be changed to the original 12. According to P = UI, the output voltage must be changed to 2 times of the original 2200v