How Does Moving a Slider from Y to X Affect Potential Difference Across Lamps?

In summary, a potential divider is a circuit that divides an input voltage into smaller voltages using two resistors connected in series. It works by utilizing the principle of voltage division, where the ratio of the resistances determines the ratio of the output voltage to the input voltage. The equation for calculating the output voltage is V<sub>out</sub> = (R<sub>2</sub> / (R<sub>1</sub> + R<sub>2</sub>)) * V<sub>in</sub>, and the factors that affect the output voltage include the resistors' ratio, input voltage, and tolerance. Practical applications of a potential divider include providing specific voltage levels for components in electronic circuits and regulating
  • #1
GreenTea09
14
0

Homework Statement


ttt9.jpg


Homework Equations


V=IR R=ql/A

The Attempt at a Solution


I chose option A as current prefers to flow through the path of least resistance.
 
Physics news on Phys.org
  • #2
GreenTea09 said:
I chose option A
Right.
 
  • #3
GreenTea09 said:
I chose option A as current prefers to flow through the path of least resistance.
Can you frame your thinking in terms of potential difference across each lamp, and how this varies as the slider is moved from Y to X?
 
  • Like
Likes cnh1995

1. What is a potential divider?

A potential divider is a circuit that divides the input voltage into smaller voltages. It consists of two resistors connected in series, and the output voltage is taken from the connection between the resistors.

2. How does a potential divider work?

A potential divider works by using the principle of voltage division. The voltage across each resistor is directly proportional to its resistance, so the ratio of the resistances will determine the ratio of the output voltage to the input voltage.

3. What is the equation for calculating the output voltage in a potential divider?

The equation for calculating the output voltage in a potential divider is Vout = (R2 / (R1 + R2)) * Vin, where R1 and R2 are the resistances of the two resistors and Vin is the input voltage.

4. What factors affect the output voltage in a potential divider?

The output voltage in a potential divider is affected by the ratio of the two resistors, the input voltage, and the tolerance of the resistors. Any changes in these factors will result in a change in the output voltage.

5. What are the practical applications of a potential divider?

Potential dividers are commonly used in electronic circuits to provide a specific voltage level for components such as sensors, LEDs, and transistors. They are also used in voltage regulators and power supplies to achieve a desired output voltage.

Similar threads

  • Introductory Physics Homework Help
Replies
3
Views
252
  • Introductory Physics Homework Help
Replies
4
Views
2K
  • Introductory Physics Homework Help
Replies
15
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
1K
  • Introductory Physics Homework Help
Replies
5
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
7K
  • Introductory Physics Homework Help
Replies
4
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
4K
  • Introductory Physics Homework Help
Replies
9
Views
968
Back
Top