Replacing Resistors in Series: Equivalent Resistance and Calculation

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Homework Help Overview

The discussion revolves around the concept of equivalent resistance in a circuit involving two resistors in series. Participants are exploring how these resistors can be represented by a single equivalent resistor and the relationship between their resistances.

Discussion Character

  • Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants are questioning how to express the equivalent resistance when two resistors are in series. There is a focus on the formula R=R1+R2 and whether the equivalent resistance remains in series with other components in the circuit.

Discussion Status

The discussion is active, with participants confirming the formula for equivalent resistance. However, there are questions regarding the configuration of the equivalent resistor in relation to the rest of the circuit, indicating a need for further clarification.

Contextual Notes

Some participants have expressed confusion about the implications of replacing two resistors with a single equivalent resistor, particularly in terms of circuit configuration.

mich_v87
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Can two resistors in series be replaced by a single resistor and give an equivalent resistance to the circuit?

If so , how must the single resistance be related to the two in series ?
R=R1+R2 ? ?
 
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Can two resistors in series be replaced by a single resistor and give an equivalent resistance to the circuit?

My answer is yes they can be replaced by a single equivalent resistance

buthow must the single resistance be related to the two in series ?

will it be in series !?
 
i mean do we use R=R1+R2? is this the answer ?
 
Yes, that's the answer. But I don't understand this: "will it be in series !?" Will it be in series with what? If you're replacing the whole series by one resistor, no.
 
yup that's right. [tex]R_e_q_u=R_1+R_2[/tex]
 
mich_v87, I've merged your 2 identical questions. Could you please refrain from doing so in the future (except for accidental posting) ?
 

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