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PHY 102 Test Compilation PHY 102 19 Objective Question
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Question

Given that the maximum electric field dry air can support is 3×10⁶V/m before it becomes ionized, determine the maximum voltage between two parallel metal plates at a distance 3cm in dry air.
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 = 90,000V = 90kV.

Hint

Simply multiply the breakdown field strength by the plate separation.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 19
Type: Objective
Difficulty: Not specified
Question 1189 of 1819
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