Neco 2020 Physics Question 39

Practice objective / multiple choice question 39 from the 2020 Neco Physics examination.

Neco 2020 Physics Objective / Multiple Choice Hard Difficulty
Question 39 NECO • 2020 • PHYSICS • objective

A rectangular conducting loop of resistance 2.0 \(\Omega\) lies in a uniform magnetic field of 0.50 T directed into the page. The loop has horizontal sides of length 0.30 m and vertical sides of length 0.40 m. The loop is pulled out of the field at a constant speed of 0.20 m/s such that the vertical side of length 0.40 m remains perpendicular to the field direction. Determine (a) the magnitude of the induced emf, (b) the induced current, and (c) the magnitude of the magnetic force acting on the moving side of the loop. State the direction of the induced current using Lenz's law.

Answer Options

A. 0.045 V, 0.022 A, 0.0045 N (counterclockwise current)
B. 0.050 V, 0.025 A, 0.0050 N (counterclockwise current)
C. 0.032 V, 0.016 A, 0.0032 N (clockwise current)
Correct Answer D. 0.040 V, 0.020 A, 0.0040 N (clockwise current)
Correct Answer
D
Correct Option:
0.040 V, 0.020 A, 0.0040 N (clockwise current)

About This Question

This is Neco 2020 Physics Question 39. It is one of the objective questions from the 2020 Neco Physics examination.

Difficulty level: Hard .

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