Three resistances of 10 ohms, 15 ohms, and 30 ohms are connected in parallel. The total resistance of the combination is

Three resistances of 10 ohms, 15 ohms, and 30 ohms are connected in parallel. The total resistance of the combination is




A. 5 ohms 
B. 10 ohms
C. 15 ohms 
D. 55 ohms





Answer: 

Given, 
R1 = 10 ohms
R2 = 15 ohm 
R3 = 30 ohm 


RT = R1 + R2 + R3 RT 

= 10 + 15 + 30 RT 

= 55 Ohm


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