The Art of Electronics
Friday, May 1, 2026
Power Calculation from Current and Resistance
Power Equation for Current and Resistance
P = I² R
Current (I) in Amps
Resistance (R) in Ohms
Calculate
Reset
Resulting Power
0.00 W
Power Calculation from Voltage and Resistance
Power equation for voltage and resistance
P = V² / R
Voltage (V)
Resistance (Ω)
Calculate
Reset
Resulting Power
0.00 W
Power Calculation from Voltage and Current
Power Equation Calculator
Power Equation for Voltage and Current
P = V x I
Voltage (V):
Current (A):
Calculate Power
Result: -- W
Voltage Divider Calculator
Professional Voltage Divider Calculator
Voltage Divider Calculator
Input Voltage (Vin)
Resistor R1 (Ω)
Resistor R2 (Ω)
Calculate Vout
Calculated Output
8.00 V
Equation: Vin × (R2 / (R1 + R2))
R1
R2
12V
Vout
Parallel Resistance Calculator
Pro Parallel Resistor Calc
Parallel Resistance Calculator
R1
R2
+ Add Resistor
Reset
Total Equivalent Resistance
0.00
Ω
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