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What is the electric field due to a point charge at a distance r?
What is the electric field due to a point charge at a distance r?
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Practice Questions
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Q1
What is the electric field due to a point charge at a distance r?
k * q / r^2
k * q / r
k * q * r
k * q * r^2
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The electric field E due to a point charge q at a distance r is given by E = k * q / r^2, where k is Coulomb's constant.
Questions & Step-by-step Solutions
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Q
Q: What is the electric field due to a point charge at a distance r?
Solution:
The electric field E due to a point charge q at a distance r is given by E = k * q / r^2, where k is Coulomb's constant.
Steps: 7
Show Steps
Step 1: Understand that a point charge is an object that has an electric charge concentrated at a single point.
Step 2: Know that the electric field (E) is a way to describe how a charge affects the space around it.
Step 3: Identify the point charge you are interested in, which we will call 'q'.
Step 4: Determine the distance from the point charge to the point where you want to find the electric field, which we will call 'r'.
Step 5: Use the formula for the electric field due to a point charge: E = k * q / r^2.
Step 6: Remember that 'k' is Coulomb's constant, which is approximately 8.99 x 10^9 N m²/C².
Step 7: Plug in the values of 'q' and 'r' into the formula to calculate the electric field 'E'.
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