Why Use a Larger Resistor with a Potentiometer in a Circuit?

AI Thread Summary
Using a larger resistor with a potentiometer in a circuit can improve the overall stability and performance of the circuit by reducing noise and preventing excessive current flow. A larger resistor can also help in achieving a wider range of resistance values when adjusting the potentiometer. Additionally, it can protect the potentiometer from damage due to high current. Providing a schematic is essential for clearer understanding and effective troubleshooting. Overall, incorporating a larger resistor enhances circuit reliability and functionality.
Mati07
Messages
2
Reaction score
0

Homework Statement


I am uncertain how to provide a schematic, so I will ask a general question. Why would it be beneficial to use a larger resistor in a circuit using a potentiometer?


Homework Equations





The Attempt at a Solution

 
Last edited:
Physics news on Phys.org
1) No one is going to help you unless you show us your work and explain to us how and why you're stuck.

2) I don't think anyone will be able to make any sense out of your question without seeing a schematic.

- Warren
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top