One weber is equal to:
Correct answer: D. N.m/A
- A. N.A2/m
- B. N.A/m
- C. N.m2/A
- D. N.m/A
Explanation
1 Weber (Wb) = 1 N·m/AIn the International System of Units (SI), the Weber is defined as the amount of magnetic flux that produces one Volt (V) of electromotive force (EMF) when it changes at a rate of one Tesla (T) per second (1 T/s) in a conducting loop. Since EMF is measured in Volts (V) and is equivalent to one Joule (J) of energy per Coulomb (C) of charge, the Weber can also be expressed in units of N·m/A (Newtons per Ampere) since 1 V = 1 J/C.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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