Voltage drop question - need check/advice

Click For Summary
SUMMARY

The discussion centers on predicting the voltage drop between points B and D in a circuit with a total voltage of 1.0 V peak-to-peak. The circuit consists of two parallel branches: one with two 1.5 kOhm resistors in series and another with a 1.5 kOhm resistor and a 0.1 μF capacitor in series. The initial assumption that the voltage at B and D would be equal, resulting in a voltage drop of 0, is challenged, emphasizing the need for calculations to support conclusions. Additionally, the discussion highlights the differences in voltage measurements between an oscilloscope and a digital voltmeter (DVM).

PREREQUISITES
  • Understanding of Ohm's Law (V=IR)
  • Knowledge of series and parallel resistor configurations
  • Familiarity with capacitive reactance and its impact on AC circuits
  • Basic principles of voltage measurement using oscilloscopes and DVMs
NEXT STEPS
  • Calculate voltage drops in parallel circuits with resistors and capacitors
  • Learn about the behavior of capacitors in AC circuits
  • Investigate the differences in measurement techniques between oscilloscopes and DVMs
  • Explore the impact of load on voltage readings in electronic circuits
USEFUL FOR

Students and professionals in electrical engineering, electronics hobbyists, and anyone involved in circuit analysis and voltage measurement techniques.

hypsibius
Messages
1
Reaction score
0
tumblr_ndpkpvqe0G1tyefrto1_500.jpg


1. Homework Statement

What do you predict the voltage will be measured from B to D directly?

Vtot = 1.0 V peak-peak
Two parallel branches, one with two 1.5 kOhm resistors in series, one with a 1.5 kOhm resistor and a 0.1 μF capacitor in series (see attached diagram)


Homework Equations



V=IR (?)[/B]

The Attempt at a Solution



I think the voltage at B and D should be equal, so the voltage drop from B to D should be 0. Is this right?[/B]
 
Physics news on Phys.org
"I think" is not an attempt :)

Can you show a calculation to support your thinking?

EDIT: Also, from what I can make out of the original question statement, two different devices are used to measure voltages: an oscilloscope and a DVM. They have different characteristics. What do you know about the values that DVM's display for voltages?
 
Last edited:
  • Like
Likes   Reactions: Linghunt

Similar threads

  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 18 ·
Replies
18
Views
5K
  • · Replies 9 ·
Replies
9
Views
8K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 34 ·
2
Replies
34
Views
6K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K