College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Concept explainers
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Question
What voltage will produce 0.4 A of current through a 4800 resistor?
![### Calculating Voltage Using Ohm’s Law
**Problem Statement:**
What voltage will produce 0.4 A of current through a 4800-Ω resistor?
**Instructions:**
Express your answer to two significant figures and include the appropriate units.
**Solution:**
Use Ohm’s Law, which states:
\[ V = I \times R \]
Where:
- \( V \) is the voltage,
- \( I \) is the current (0.4 A),
- \( R \) is the resistance (4800 Ω).
Calculate by substituting the given values:
\[ V = 0.4 \, \text{A} \times 4800 \, \Omega \]
Perform the multiplication to find \( V \).
**Answer Box:**
- Value: ______
- Units: ______
Ensure accuracy and appropriate units are used in your final answer.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F592c3157-16ae-4adf-9e37-2db2ec2ebc8f%2F105ab125-7926-418c-ae42-0dcc531a13a6%2F5l6xo5g_processed.png&w=3840&q=75)
Transcribed Image Text:### Calculating Voltage Using Ohm’s Law
**Problem Statement:**
What voltage will produce 0.4 A of current through a 4800-Ω resistor?
**Instructions:**
Express your answer to two significant figures and include the appropriate units.
**Solution:**
Use Ohm’s Law, which states:
\[ V = I \times R \]
Where:
- \( V \) is the voltage,
- \( I \) is the current (0.4 A),
- \( R \) is the resistance (4800 Ω).
Calculate by substituting the given values:
\[ V = 0.4 \, \text{A} \times 4800 \, \Omega \]
Perform the multiplication to find \( V \).
**Answer Box:**
- Value: ______
- Units: ______
Ensure accuracy and appropriate units are used in your final answer.
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