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How can inductors convert the stored magnetic energy into electrical energy and send it back to the power supply? The pure inductor does not consume energy. In the first and the third quarter cycle, P is positive, and the capacitor takes electric energy from the power supply and converts it into magnetic energy, which is stored in its magnetic field; in the second and the fourth quarter cycle, P is negative, Inductive elements convert the stored magnetic field energy into electric energy and send it back to the power supply. How can inductive elements convert the stored magnetic field energy into electric energy and send it back to the power supply? Also, if the pure inductance does not consume energy, where does the electromagnetic torque come from? Because the stator winding of the motor is also pure inductance, Electric energy is converted into magnetic energy, and then magnetic energy is converted into electric energy. How can there be electromagnetic torque output?
Pure inductor itself does not consume energy, does not mean that there is no energy output
What can be transformed into why when dry batteries supply power?
Dry batteries are powered by converting chemical energy into electrical energy
Mine is right
From the point of view of energy conversion, power supply is a device that converts () energy into () energy. Dry battery and storage battery convert () energy into ()
Other forms of electrochemical energy
RELATED INFORMATIONS
- 1. What can be converted into what can be converted into what can be converted into when the battery is used for external power supply? What can be converted into what can be converted into when the generator is used for power generation?
- 2. After the invention, people will be able to convert other forms of energy into electricity on a large scale
- 3. The following appliances are used in our daily life, and the energy is obtained by chemical reaction: (1) microwave oven; (2) gas water heater; (3) electric stove; (4) alcohol lamp; (5) solar cooker A. ①②③B. ①④⑤C. ②④D. ②⑤
- 4. The wind power station converts the heat energy of the wind into electricity
- 5. All electrical appliances can convert electric energy into energy
- 6. Does the current consume as much power as it does A said that electrician and current are the same physical quantity. There is no difference between them. They are equal in size B: how much work does the current consume Are they all right? B why not? A why not? I'm adding 20 points. Is that ok?
- 7. When a consumer is connected to the lighting circuit for 5 minutes, the energy consumed is 3.3 × 10 to the fifth power J, then the current passing through the consumer is（ When a consumer is connected to the lighting circuit for 5 minutes, the consumed electric energy is 3.3 × 10 to the fifth power J, then the current passing through the consumer is () a
- 8. The simplest circuit consists of four parts, which are the power supply of (), the wire that converts electric energy into other forms of energy (), () and the control circuit The simplest circuit consists of four parts: the power supply of (), the wire that converts electric energy into other forms of energy (), and the wire that controls the circuit on and off
- 9. From the positive side of the power supply to the negative side, the electric energy will be consumed along the way, so the current eye circuit gradually weakens. Right, why
- 10. The circuit in which the current comes out of the positive pole of the power supply and directly returns to the negative pole of the power supply without passing through the electric appliance is called the circuit
- 11. Try to analyze the energy conversion between wind power for home lighting, if there is no energy loss, what will happen
- 12. What is the energy conversion in the process of wind power generation
- 13. What is the specific process of wind power generation?
- 14. Examples of mutual transformation of internal energy and chemical energy Conversion of internal energy into chemical energy
- 15. Kneel for the electric cooker cooking, water and rice, electric cooker power, cooking time function. Thank you
- 16. Mechanical energy, electric energy, internal energy, light energy and chemical energy
- 17. What did the birds in the air inspire us to invent? Who invented it? When was it invented?
- 18. Before the discovery of electromagnetic induction (electricity generated by magnetic energy), how do people use electricity and what kind of electricity is used to discover electricity generating magnetism?
- 19. Electromagnet converts electric energy into () energy? 1, kinetic energy? 2, mechanical energy? 3 and magnetic energy
- 20. Does the iron absorption of magnet violate the law of conservation of energy? A piece of iron moves under the attraction of a magnet. Is the energy of the magnet converted into the kinetic energy of the iron? If so, why does the "magnetic force" of the magnet not gradually decrease?