The electric field due to a point charge is given by which formula? (2020)
Practice Questions
1 question
Q1
The electric field due to a point charge is given by which formula? (2020)
kQ/r^2
kQ/r
Q/4πε₀r^2
Q/4πε₀r
The electric field (E) due to a point charge (Q) is given by E = kQ/r^2, where k is Coulomb's constant.
Questions & Step-by-step Solutions
1 item
Q
Q: The electric field due to a point charge is given by which formula? (2020)
Solution: The electric field (E) due to a point charge (Q) is given by E = kQ/r^2, where k is Coulomb's constant.
Steps: 5
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: Remember that the formula for the electric field due to a point charge is E = kQ/r^2.
Step 4: Identify the variables in the formula: E is the electric field, k is Coulomb's constant, Q is the charge, and r is the distance from the charge.
Step 5: Realize that as you move further away from the charge (increasing r), the electric field strength (E) decreases.
