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

 

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

V▓ / P

V▓ / R

P / A▓

A▓ 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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