Problem:

Calculate the total impedance (ZT) of this circuit when:

R = 1.2kW
XL = 2.2kW

Procedure:  
1. Determine the appropriate equation
ZT = R2 + XL2
 
2. Substitute the known values
ZT = (1.2 x 103)2 + (2.2 x 103)2
 
3. Complete the math

ZT = 2.5 x 103

 
   
Solution

ZT = 2.5kW

 

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