Download presentation

Presentation is loading. Please wait.

1
Series Circuits ENTC 210: Circuit Analysis I Rohit Singhal Lecturer Texas A&M University

2
Is this a series circuit? R1R1 R2R2

3
R1R1 R2R2 R3R3

4
R1R1 R2R2 R3R3

5
Series Circuit Two elements are in series if They have only one terminal in common. The common point in the two elements is not connected to a third current carrying element.

6
Resistance Resistance is proportional to length length direction of current flow

7
Resistance R = ρ L/A ρ is the resistivity of the material (units?)

8
Resistance What happens if two elements are connected back to back? length direction of current flow length direction of current flow

9
Resistance R = ρ (L 1 +L 2 )/A R = R 1 + R 2 The total resistance of a series circuit is the sum of all the resistances in the path

10
Resistance The resistance seen by the source R=R 1 +R 2 The two circuits on the right are equivalent R1R1 R2R2 R 1 +R 2

11
Voltage Drop? The current through each resistor is calculated by the Ohm’s law =V 1 /R 1 Where V 1 is the voltage across the resistor. =V/R T Where R T is the total resistance in the circuit. V 1 = VxR 1 /R T

12
Power? Power dissipated in each resistor P 1 = V 1 2 /R 1 P 1 = (V 2 /R T 2 )x R 1 Total power = V 2 /R T = P 1 + P 2 + …

13
Kirchhoff’s Voltage Law The algebraic sum of the potential rises and drops around a closed loop is zero.

14
KVL V + V 1 +V 2 = 0 Can anyone prove this mathematically? R1R1 R2R2 V V1V1 V2V2

15
Voltage Divider Rule In a series circuit the voltage across the resistive elements will divide as the magnitude of the resistors

16
Ground Terminal This is not a loop. Or is it?

17
Ground Terminal This is not a loop. Or is it? Ground terminal means that the two points are both connected to ground and are at a zero potential. So this is a loop.

18
Internal Resistances Voltage and other sources have internal resistances, and they should be counted while solving circuits.

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google