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PHY 102 Test Compilation PHY 102 6 Objective Question
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Question

Electric flux emerging from circular surface radius 0.025 m, E=100 V/m, angle 30° with surface.
Options
A 0.098 Nm²/C
Correct Answer
B 0.170 Nm²/C
C 0.090 Nm²/C
D 0.196 Nm²/C
Correct Answer

Option A is the correct answer.

Detailed Explanation

Angle with surface = 30°, so angle with normal = 60°. Area = πr² = π×0.000625 = 0.0019635 m². Φ = E A cosθ = 100 × 0.0019635 × cos60° = 0.19635 × 0.5 = 0.09818 Nm²/C ≈ 0.098 Nm²/C.

Hint

Φ = EA cosθ, θ with normal.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 6
Type: Objective
Difficulty: Not specified
Question 438 of 1819
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