Hair dryer is a common electrical appliance in modern families. Figure 1 shows the hair dryer used in Xiaohua's home. In the process of using, she found that the hair dryer can blow both hot and cold air. According to this phenomenon, she concluded that the motor with fan and the heating wire can generate heat in the hair dryer. According to the phenomenon that the hair dryer can output cold air independently, she thought that the motor and the heating wire are the same (1) which of the above two circuits do you think is more in line with the actual situation. (2) Xiaohua read the manual and learned that the power of this type of hair dryer is 460W when blowing hot air and 20W when blowing cold air. When the hair dryer is working normally and blowing hot air, the power, resistance and current of the heating wire pass through the hair dryer in 1min The heat produced by a hot wire

Hair dryer is a common electrical appliance in modern families. Figure 1 shows the hair dryer used in Xiaohua's home. In the process of using, she found that the hair dryer can blow both hot and cold air. According to this phenomenon, she concluded that the motor with fan and the heating wire can generate heat in the hair dryer. According to the phenomenon that the hair dryer can output cold air independently, she thought that the motor and the heating wire are the same (1) which of the above two circuits do you think is more in line with the actual situation. (2) Xiaohua read the manual and learned that the power of this type of hair dryer is 460W when blowing hot air and 20W when blowing cold air. When the hair dryer is working normally and blowing hot air, the power, resistance and current of the heating wire pass through the hair dryer in 1min The heat produced by a hot wire

(1) In figure a, when the switch is placed between 1 and 2, the motor can't work and blow cold air; when the switch is placed between 2 and 3, the heating wire and the motor work and blow hot air; in Figure B, when the switch is placed between 1 and 2, the motor work and blow cold air; when the switch is placed between 2 and 3, the heating wire and the motor work and blow hot air

Rated current is the closest to 4A electrical appliances, A. refrigerator B. TV C, energy saving lamp D, electric pressure cooker, please God

Electric pressure cooker

Physics knowledge: how much is the rated current of refrigerator, TV and electric pressure cooker?

Power / voltage = current
I can calculate by myself!

The rated current of the following electrical appliances is closest to 4a, please

Choose an electrical appliance with a power close to 1 kW