Waec Model Questions Vol1 2020 Physics Question 46

Practice objective / multiple choice question 46 from the 2020 Waec Model Questions Vol1 Physics examination.

Waec Model Questions Vol1 2020 Physics Objective / Multiple Choice Hard Difficulty
Question 46 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

A circular loop of wire with a radius of 0.1 m carries a current of 5 A. Calculate the magnetic field strength at the center of the loop. Then, if the current is doubled, determine the new magnetic field strength. What is the ratio of the new magnetic field strength to the original magnetic field strength?

Answer Options

A. 1
B. 3
C. 4
Correct Answer D. 2
Correct Answer
D
Correct Option:
2

About This Question

This is Waec Model Questions Vol1 2020 Physics Question 46. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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