How do I find the currents through each component in a parallel battery circuit?

AI Thread Summary
To find the currents through each component in a parallel battery circuit, Kirchhoff's laws are essential. The total current through the resistor is the sum of the currents from both batteries, labeled as I1 and I2, which equals 0.01 A. Assuming the batteries are identical, each battery would contribute half of the total current, suggesting I1 and I2 would each be 0.005 A. The discussion emphasizes the need to analyze the circuit using these principles to determine the individual currents. Understanding the behavior of parallel circuits is crucial for solving such problems effectively.
tjkubo
Messages
41
Reaction score
0

Homework Statement


Find the current through each component of the circuit.


Homework Equations


Kirchhoff's laws


The Attempt at a Solution


I labeled the current through the left battery I1 and the current through the right battery I2. Therefore the current through the resistor is I1+I2. Using the voltage rule, I1+I2 = .01 A.
I have no idea how to find I1 and I2. Would current flow through both of them?
 

Attachments

  • circuit.jpg
    circuit.jpg
    5 KB · Views: 396
Physics news on Phys.org
tjkubo said:

Homework Statement


Find the current through each component of the circuit.


Homework Equations


Kirchhoff's laws


The Attempt at a Solution


I labeled the current through the left battery I1 and the current through the right battery I2. Therefore the current through the resistor is I1+I2. Using the voltage rule, I1+I2 = .01 A.
I have no idea how to find I1 and I2. Would current flow through both of them?
HINT: Assume that batteries are identical (i.e. have the same internal resistance).
 


So each battery contributes half of the total current?
 
That would seem to be the case.
 
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 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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