Vogele Basic Training Hydraulics & Electrics
Vogele Basic Training Hydraulics & Electrics Vogele Basic Training Hydraulics & Electrics
E.2.0 Units of measurement in electrics E.2.9.2 Calculating electrical power The following formulas can be used to calculate electrical power P. P = U I * P = R I² * P = U² R The power P increases proportionally to the square of the current I. The power P increases proportionally to the square of the voltage U.
E.3.0 Relationships between units of electricity E.3.1 Ohm’s Law If a voltage (U) is applied to a resistor (R) in a closed electrical circuit, a specific current (I) will flow through that resistor (R). The relationship of the values to one another can be determined by means of simple formulas. The following formulas can be calculated to this end : If a voltage (U) is applied to a resistor (R), a current (I) will flow through the resistor (R). I = U R If a current (I) flows through a resistor (R), a voltage (U) has been applied to it. R = U I If a current (I) should flow through a resistor (R), the voltage (U) must be calculated. U = R * I
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E.3.0 Relationships between units of electricity<br />
E.3.1 Ohm’s Law<br />
If a voltage (U) is applied to a resistor (R) in a closed electrical circuit, a specific current (I)<br />
will flow through that resistor (R).<br />
The relationship of the values to one another can be determined by means of simple formulas.<br />
The following formulas can be calculated to this end :<br />
If a voltage (U) is applied to a resistor (R), a current (I)<br />
will flow through the resistor (R).<br />
I = U R<br />
If a current (I) flows through a resistor (R), a voltage (U)<br />
has been applied to it.<br />
R = U I<br />
If a current (I) should flow through a resistor (R), the voltage (U)<br />
must be calculated.<br />
U = R * I
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