What is the electric field due to a point charge at a distance 'r' from it? (202

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Question: What is the electric field due to a point charge at a distance \'r\' from it? (2021)

Options:

Correct Answer: k * q / r^2

Exam Year: 2021

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.

What is the electric field due to a point charge at a distance 'r' from it? (2021)

What is the electric field due to a point charge at a distance 'r' from it? (2021)

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 distance (r) from the point charge where you want to calculate the electric field.
Step 4: Remember that Coulomb's constant (k) is a number that helps us calculate the electric field. Its value is approximately 8.99 x 10^9 N m²/C².
Step 5: Use the formula E = k * q / r^2, where 'q' is the amount of charge of the point charge.
Step 6: Plug in the values of k, q, and r into the formula to calculate the electric field (E).

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