Online Ohm's Law calculator

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Ohm's Law calculator

Enter 2 values to get the other values and press the Calculate button:

Resistance (R):
Current (I):
Voltage (V):
Power (P):

Ohm's law estimation method

The current I in amps (A) is equivalent to the voltage V in volts (V) partitioned through the opposition R in ohms (Ω):

I = V/R

Example

I = 20V/10ω = 2A

The energy P in watts (W) is equal to the voltage V in volts (V) times the continuing I in amps (A):

P = V × I

AC Ohm's law calculator

Enter 2 values of magnitude+phase angle to get the other values and press the Calculate button:

Impedance (Z):
∠ °  = 
Current (I):
∠ °    
Voltage (V):
∠ °    
Power (S):
∠ °  = 

AC Ohm's law estimation components

The voltage V in volts (V) is eqaul to the continuing I in amps (A) times the impedance Z in ohms (Ω):

V(V) = I(A) × Z(ω) = (complicated strength×



Online Electrical Calculators

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Electrical Calculators