alleryOne gauss equals which of the following in tesla?
A10⁴ T
B10⁻⁴ T
C10⁻⁷ T
D10⁷ T
Answer & Solution
Correct answer: B. 10⁻⁴ T
1. The tesla is the SI unit of magnetic field and is a large unit.
2. A smaller non-SI unit, the gauss, is also used.
3. By definition, $1 \text{ gauss} = 10^{-4} \text{ T}$.
4. (Hence the earth's field of order $10^{-5}$ T is a fraction of a gauss.)
_Source: syllabus Physics Ch 4 "Moving Charges and Magnetism", p.136_
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