What is the electric potential at a point 0.3m away from a charge of +4μC?
Practice Questions
1 question
Q1
What is the electric potential at a point 0.3m away from a charge of +4μC?
12000 V
3000 V
6000 V
9000 V
V = k * q / r = (9 × 10^9) * (4 × 10^-6) / 0.3 = 12000 V.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the electric potential at a point 0.3m away from a charge of +4μC?
Solution: V = k * q / r = (9 × 10^9) * (4 × 10^-6) / 0.3 = 12000 V.
Steps: 6
Step 1: Identify the formula for electric potential (V) due to a point charge, which is V = k * q / r.
Step 2: Understand the variables in the formula: k is the electrostatic constant (approximately 9 × 10^9 N m²/C²), q is the charge (in this case, +4μC or +4 × 10^-6 C), and r is the distance from the charge (0.3m).
Step 3: Substitute the values into the formula: V = (9 × 10^9) * (4 × 10^-6) / 0.3.
