The unit of magnetic field strength is MCQ with Answer and Explanation

The unit of magnetic field strength is
A. Weber
B. Farad
C. Tesla
D. Henry
Answer: Option C
Solution (By JKExamLibrary)
Tesla (T) = N/(A·m) = Wb/m². Weber is magnetic flux. Henry is inductance. Farad is capacitance. Gauss is another unit (1 T = 10⁴ G).

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Practice More Physics Questions

Question #1
The audible range of sound for human beings is
A. 20 Hz - 20,000 Hz
B. 0 - 100 Hz
C. 20 kHz - 200 kHz
D. 200 Hz - 2000 Hz

Correct Answer: Option A


Explanation:
Standard audible range.

This question belongs to: Science Physics
Question #2
A projectile is fired at an angle of 45 degrees to the horizontal. The ratio of its maximum height to its horizontal range is:
A. 2:1
B. 4:1
C. 1:2
D. 1:4

Correct Answer: Option D


Explanation:
The maximum height H = (u^2 * sin^2(theta)) / 2g. The horizontal range R = (u^2 * sin(2theta)) / g. For an angle of 45 degrees, sin(45) = 1/sqrt(2) and sin(90) = 1. H = (u^2 * 0.5) / 2g = u^2 / 4g. R = u^2 / g. Therefore, H/R = (u^2/4g) / (u^2/g) = 1/4. The ratio is 1:4.

This question belongs to: Science Physics
Question #3
The scientist who discovered electromagnetic induction was
A. Ampere
B. Oersted
C. Volta
D. Faraday

Correct Answer: Option D


Explanation:
Michael Faraday.

This question belongs to: Science Physics