Question Detail

PHY 102 Test Compilation PHY 102 2 Objective Question

Question

Max E field in dry air = 3×10⁶ V/m (typical). Plates 3 cm apart. Max voltage?
Options
A 9kV
B 90kV
Correct Answer
C 900kV
D 9MV
Correct Answer

Option B is the correct answer.

Detailed Explanation

V = E×d = 3×10⁶ × 0.03 = 90,000 V = 90 kV.

Hint

V = E·d.

Question Info