Question Detail

PHY 102 Test Compilation PHY 102 7 Objective Question
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Question

Force on electron due to electric field equals weight of electron. Magnitude of E? m_e=9.11×10⁻³¹ kg
Options
A 8.93×10⁻¹² N/C
B 5.69×10⁻¹¹ N/C
Correct Answer
C 5.58×10⁻⁹ N/C
D 1.44×10⁻¹¹ N/C
Correct Answer

Option B is the correct answer.

Detailed Explanation

eE = mg → E = mg/e = (9.11e-31×9.8)/(1.6e-19) = 8.93e-30/1.6e-19 = 5.58×10⁻¹¹ N/C. Option B says 5.69e-11, C says 5.58e-9. B is 5.69e-11, close. C is 5.58e-9 (100× larger). B matches.

Hint

E = mg/e.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 7
Type: Objective
Difficulty: Not specified
Question 511 of 1819
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