Calculate the resistance of a 270-cm length of copper wire with a 0.030-cm2 cross-sectional area. ( = 1.8 · 10-6 ohm-cm) R = ___
__Ω 5.4 x 10-1 5.0 x 109 2.0 x 10-18 1.6 x 10-2
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
Given:-
The length of copper wire (L) = 270 cm
Area of cross-sectional (A) = 0.030 
and specific resistance (ρ) =  ohm-cm.
 ohm-cm.
Use the formula  R=(Specific resistance*L)/A, to calculate the Resistance(R)
then,  ohm
 ohm
Simplify:
R = 0.0162 ohm =  ohm
 ohm
Therefore, the resistance of copper wire is,   Ω
 Ω
 
                                
             
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