Resistance series and parallel

In summary, the conversation discusses the equations for series and parallel circuits and identifies which branches in a circuit are parallel and which are in series. The individual is unsure about which branches are in series and asks for clarification.
  • #1
bathtubbuddy
2
0

Homework Statement



circuito_practica_u3.png


Homework Equations



series - Ra+Rb

parallel - 1/[(1/Ra)+(1/Rb)]

The Attempt at a Solution



Im positive that R1,R2 y R3 are parallel, but also (R5+R8), R9 and (R10+R4) right? is R7 parallel to anything? which ones would be series? so confusing... thankies :]
 
Physics news on Phys.org
  • #2
bathtubbuddy said:
Im positive that R1,R2 y R3 are parallel,
Yes
but also (R5+R8), R9 and (R10+R4) right?
These 3 branches are parallel branches.
is R7 parallel to anything?
R7 is not. It is in series with a voltage source.
which ones would be series? so confusing..
Two branches are in series if [all of] the current that flows through one also then flows through the other.
 

1. What is the difference between a series and parallel circuit?

In a series circuit, the components are connected one after another in a single loop, so the current flows through each component in the same direction. In a parallel circuit, the components are connected in multiple branches, so the current is divided and flows through each branch separately.

2. How does the total resistance differ in a series and parallel circuit?

In a series circuit, the total resistance is equal to the sum of the individual resistances. In a parallel circuit, the total resistance is less than the smallest individual resistance.

3. Can you explain the concept of voltage drop in a series circuit?

In a series circuit, the voltage drop is the amount of voltage that is used up by each component as the current flows through it. The total voltage drop across all components in a series circuit will equal the total voltage supplied by the power source.

4. How does the current differ in a series and parallel circuit?

In a series circuit, the current remains constant throughout the circuit, as it is the same at any point in the loop. In a parallel circuit, the current is divided among the branches, so the total current is equal to the sum of the currents in each branch.

5. How do you calculate the total resistance in a parallel circuit?

The total resistance in a parallel circuit can be calculated using the formula: 1/RT = 1/R1 + 1/R2 + 1/R3 + ..., where RT is the total resistance and R1, R2, R3, etc. are the individual resistances in each branch. Alternatively, the total resistance can also be calculated by using Ohm's Law: RT = V/I, where V is the voltage and I is the total current in the circuit.

Similar threads

  • Introductory Physics Homework Help
Replies
5
Views
819
  • Introductory Physics Homework Help
Replies
11
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
1K
  • Introductory Physics Homework Help
Replies
7
Views
1K
  • Introductory Physics Homework Help
Replies
13
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
970
  • Introductory Physics Homework Help
Replies
1
Views
818
  • Introductory Physics Homework Help
Replies
9
Views
2K
  • Introductory Physics Homework Help
Replies
9
Views
1K
Back
Top