2 Questions on Ohm's Law and Power

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Homework Help Overview

The discussion revolves around Ohm's Law and power in electrical circuits, specifically focusing on the behavior of resistors (lamps) when added in series and the implications of power dissipation in a circuit.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants explore how the resistance changes when identical lamps are added in series, questioning the total resistance calculation. There is also inquiry about the meaning of power dissipation and voltage in relation to current.

Discussion Status

The conversation includes attempts to clarify the configuration of the lamps (series or parallel) and the implications of power measurements. Some participants express uncertainty about the terminology and calculations involved, indicating a need for further exploration of the concepts.

Contextual Notes

There is mention of a specific voltage and current in the circuit, but the exact configuration of the lamps is not clearly established, leading to questions about the assumptions being made.

Lovely
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If a single lamp has resistance of 3 ohms, and a second and third identical lamp is added wouldn't the second be 6, and third be 9.
If a part of an electric circuit diaaipates energy at 6 when it draws a current of 3A, what voltage is impressed across it? What does 6 represent
 
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How are the 2 lamps "added",in series,in parallel,mixed...?

As for the second,i think they mean 6W,thoough I'm not sure.

Daniel.
 
dextercioby said:
How are the 2 lamps "added",in series,in parallel,mixed...?

As for the second,i think they mean 6W,thoough I'm not sure.

Daniel.
Daniel,
The question is as followed: In a simple circuit 6-volt dry cell pushes charge through a single lamp whiich has a resistance of 3 ohms. the current through the circiut is 2 amps.
If a second identical lamp is connected in series, the 6 volt battery must push a charge through a total resistance of how many ohms. Same for third identical lamp
 
Well,what do you think...?What do you know about series coupled resistors...?What's the equivalent resistance...?

Daniel.
 

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