- #31
gracy
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So,why the gap does not appear in case of 2 and 3 as in 1 and 4?
Potentiometer and galvanometer experiment
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Homework Help Overview
The discussion revolves around the concept of zero deflection in a galvanometer as part of a potentiometer experiment. Participants explore the conditions under which the galvanometer indicates zero deflection, particularly focusing on the relationship between potential differences and resistances in the circuit.
Discussion Character
- Conceptual clarification, Assumption checking, Problem interpretation
Approaches and Questions Raised
- Participants question the implications of potential differences being zero and the conditions required for the galvanometer to show zero deflection. There are discussions about the role of internal resistance and the significance of connecting wires in the circuit.
Discussion Status
The discussion is active, with participants providing clarifications and seeking further understanding of the concepts involved. Some have offered guidance on how to approach the problem, while others are exploring different interpretations of the setup and its implications.
Contextual Notes
There are mentions of a video that may have contributed to confusion regarding the circuit elements and their roles. Participants also highlight the importance of circuit diagrams for clarity in understanding the problem.
- #32
Bystander
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Ahah! The light dawns. Drawing "conventions" in schematic diagrams --- I parenthesize the word "conventions" because they aren't universally or uniformly applied/used: 1) lines indicating wiring between components in a circuit can intersect without indicating a connection between the two wires represented by the lines; 2) a situation where there is no connection can be indicated by the small semi-circle just to the left of the galvanometer in the schematic (it implies the one wire "jumping" over the other, a short break in one line, a dashed line, different line weights/widths, different shading; 3) you will also see schematics where lines cross each other, and connections are specifically indicated by heavy dots at the intersections, leaving you to infer that there is no connection where no dots are shown at intersections. It just looks like the "3" gap is bridged by the cell, and the "2" gap by a wire until I tell you that the "semi-circle" indicates that the two wires are not connected.gracy said:
- #33
NascentOxygen
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A grouping of 4 sockets for a pair of jumpers is just inviting trouble!
Why not just draw like this, and you choose to either drop the cell into the circuit as shown, or else reversed. Too straightforward? oo)
Why not just draw like this, and you choose to either drop the cell into the circuit as shown, or else reversed. Too straightforward? oo)