## Unit expansions for Tesla/Webers/Volts?

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AquaLaventry
Posts: 7
Joined: Sat Nov 05, 2011 9:27 pm

### Unit expansions for Tesla/Webers/Volts?

Are they useful for dimensional analysis problems on the PGRE?

llamacheez
Posts: 10
Joined: Tue Aug 02, 2011 9:57 pm

### Re: Unit expansions for Tesla/Webers/Volts?

Yes.

The easiest way to remember these kinds of things is through the simplest equations that involve them, which put them in terms of quantities with simpler units. Maybe things like this.

$U = q V$

$F = q v \times B$

$\Phi_B = A B$