For everyone that needs Ohm's Law there are some sites here that have some good info & charts to print out, or you can use the list below Howard Rudy http://www.angelfire.com/pa/baconbacon/index.html http://www.angelfire.com/pa/baconbacon/page2.html http://www.angelfire.com/pa/baconbacon/page3.html http://www.angelfire.com/pa/baconbacon/page4.html Symbolic: E =VOLTS ~or~ (V = VOLTS) P =WATTS ~or~ (W = WATTS) R = OHMS ~or~ (R = RESISTANCE) I =AMPERES ~or~ (A = AMPERES) HP = HORSEPOWER PF = POWER FACTOR kW = KILOWATTS kWh = KILOWATT HOUR VA = VOLT-AMPERES kVA = KILOVOLT-AMPERES C = CAPACITANCE EFF = EFFICIENCY (expressed as a decimal) DIRECT CURRENT AMPS=WATTS÷VOLTS I = P ÷ E A = W ÷ V WATTS=VOLTS x AMPS P = E x I W = V x A VOLTS=WATTS ÷ AMPS E = P ÷ I V = W ÷ A HORSEPOWER=(V x A x EFF)÷746 EFFICIENCY=(746 x HP)÷(V x A) AC SINGLE PHASE ~ 1ø AMPS=WATTS÷(VOLTS x PF) I=P÷(E x PF) A=W÷(V x PF) WATTS=VOLTS x AMPS x PF P=E x I x PF W=V x A x PF VOLTS=WATTS÷AMPS E=P÷I V=W÷A VOLT-AMPS=VOLTS x AMPS VA=E x I VA=V x A HORSEPOWER=(V x A x EFF x PF)÷746 POWERFACTOR=INPUT WATTS÷(V x A) EFFICIENCY=(746 x HP)÷(V x A x PF) AC THREE PHASE ~ 3ø AMPS=WATTS÷(1.732 x VOLTS x PF) I = P÷(1.732 x E x PF) WATTS=1.732 x VOLTS x AMPS x PF P = 1.732 x E x I x PF VOLTS=WATTS÷AMPS E=P÷I VOLT-AMPS=1.732 x VOLTS x AMPS VA=1.732 x E x I HORSEPOWER=(1.732 x V x A x EFF x PF)÷746 POWERFACTOR=INPUT WATTS÷(1.732 x V x A) EFFICIENCY=(746 x HP)÷(1.732 x V x A x PF) RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]