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Fundamental and Derived Units

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Question

Find symbols have standard meanings.
(a) electric field E,
(B) magnetic field B and
(c) magnetic permeability $η_{0}$ The relevant equation are

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Solution

Parameter name: electrical field
Symbol: $E$
Formula: $E = F / q (V o l t / m e t e r)$
Definition: Region around an electric charge, $q$ , in which an electric force, $F$ , is exerted on another charge.

Parameter name: Magnetic field
Symbol: $B$
Formula: $B = \frac{μ_{0} I}{2 π r}$ (Tesla)
Definition: Field produced by either a magnet or by current flows

Parameter name: Permeability of Free Space:
Symbol: $η_{o}$
Formula: $μ = B / H = \frac{m a g n e i c f l u x d e n s i t y}{m a g n e t i c f i e l d s t r e n g t h}$
Definition: magnetic permeability associated with a vacuum, i.e. the permeability of a magnetic field in the absence of any material.

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Similar questions

μ_{0}

F = q E, F = q v B, and B = \frac{μ_{0} I}{2 π a};

Find the dimensions of

(a) electri field E,

(b) magnetic field B and

The relevant equations are

$F = q E, F = q v B,$ and $B = \frac{μ_{0} I}{2 π a}$

where F is force, q is charge, v is speed, I is current, and a is distance.

\frac{E}{B}

x = \frac{1}{\sqrt{μ_{0} ε_{0}}}, y = \frac{E}{B}

z = \frac{l}{C R}

C

R

l

E

B

ε_{0}, μ_{0}

B = \frac{E}{c}

U

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