A resistor is rated for 2.5 kΩ, 1 watt. Determine its maximum voltage and current ratings.
A resistor is rated for 2.5 kΩ, 1 watt. Determine its maximum voltage and current ratings.
Right Answer is:
50 V, 20 mA
SOLUTION
Given
R = 2.5 kΩ
P = 1 Watt
Power P = I2R
P = I2 × 2500 = V2/2500
I = 1/√2500 = 20 mA
V = √2500 = 50 V