A Couple More Simple Think critically and Explain Questions

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Homework Help Overview

The discussion revolves around basic concepts in electricity and circuits, specifically focusing on resistance in extension cords, current in light bulbs at different voltages, the behavior of electrons in alternating current, and the type of current used in various lighting applications.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster poses several questions regarding electrical concepts, indicating a need for clarification on the importance of resistance in extension cords, the relationship between voltage and current in light bulbs, the behavior of electrons in AC, and the type of current in different lamps. Some participants question the effort put into understanding these concepts before seeking help.

Discussion Status

The discussion is ongoing, with the original poster expressing difficulty in understanding the questions and seeking assistance. Some participants have prompted the poster to engage more deeply with the material before asking for help, while others have offered to clarify concepts related to power and AC current.

Contextual Notes

There appears to be an expectation for the original poster to attempt the problems independently before seeking assistance, which may influence the nature of responses received.

emma123
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Think and Explain

1. Why is it important that the resistance of an extension cord be small when it is used to power an electric heater?

2. Will the current on a light bulb connected to 220V be more or less than when the same light bulb is connected to 110V? How much?

3. In 60- Hz alternating current, how many times per second does the electron change its direction? (Don't say 60)

4. Would you expect to find DC or AC in the dome lamp in an automobile? In the lamp in your home?

Please help on these questions I would appreciate it very much THANKS!:smile:
 
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Not to be rude but, you do realize you have to put some work into it before anyone will help you.
 
oh sorry about that, but i did try to do them myself but i didn't understand them so i decided to skip them move on and then go back to try to figure out the answers for these few problems but i couldn't so I decided to post them up as well
 
emma123 said:
Think and Explain

1. Why is it important that the resistance of an extension cord be small when it is used to power an electric heater?

2. Will the current on a light bulb connected to 220V be more or less than when the same light bulb is connected to 110V? How much?

3. In 60- Hz alternating current, how many times per second does the electron change its direction? (Don't say 60)

4. Would you expect to find DC or AC in the dome lamp in an automobile? In the lamp in your home?

Please help on these questions I would appreciate it very much THANKS!:smile:


Have you learn about power in an electric circuit? Do you know what it means to have a 60 Hz AC current?

Pat
 

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