Neco Model Questions Vol1 2018 Physics Question 17

Practice objective / multiple choice question 17 from the 2018 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2018 Physics Objective / Multiple Choice Hard Difficulty
Question 17 NECO_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • objective

A long solenoid 0.50 m in length has 800 turns and carries a current of 2.0 A.\n(a) Find the magnetic field inside the solenoid.\n(b) A rectangular conducting loop of width 0.10 m and height 0.20 m is placed with one side flush against the end of the solenoid, the plane of the loop parallel to the solenoid axis. The loop is pulled completely out of the solenoid at a constant speed of 0.05 m s⁻¹. Determine the average induced emf in the loop during the extraction.\n(c) If the loop has a resistance of 4 Ω, calculate the total thermal energy generated in the loop during the extraction.

Answer Options

A. 2.0×10⁻⁹ J
B. 1.0×10⁻⁹ J
C. 5.0×10⁻¹⁰ J
Correct Answer D. 4.0×10⁻¹⁰ J
Correct Answer
D
Correct Option:
4.0×10⁻¹⁰ J

About This Question

This is Neco Model Questions Vol1 2018 Physics Question 17. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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