Ohm's Law At 24HourCB.com
|
Table Of Definition |
|
| V = | Voltage in volts |
| A = | Electric current in amps |
| R = | Resistance the opposition of electrical current in ohms |
| P = | Power measured in watts |
Ohm's Law Formulas
|
V = |
A x R |
A = |
V / R |
| P / A | P / V | ||
| SQRT ( P x R ) | SQRT ( P / R ) | ||
|
R = |
V / A |
P = |
V x A |
| V² / P |
V² / R |
||
| P / A² |
A² x R |
|
For Example: If you're transmitting 4 watts of RF power from a CB transceiver to a 50 ohm Antenna System, how many volts at that antenna feeding terminal? 14.14 Volts = SQRT ( 4 watts x 50 ohms ) How much current is feeding into the antenna terminal? 0.283 Amps = SQRT ( 4 watts / 50 ohms ) |
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