जब दो प्रतिरोध `R_(1)` और `R_(2)` को समांतर क्रम में जोड़ा जाता है, तो समांतर संयोजो का समतुल्य प्रतिरोध `(R_(p))` है

Options

A. `R_(p)= (R_(1) + R_(2))/(R_(1)R_(2))`
B. `R_(p)= (R_(1)R_(2))/(R_(1)-R_(2))`
C. `R_(p)= (R_(1)-R_(2))/(R_(1) + R_(2))`
D. `R_(p)= (R_(1)R_(2))/(R_(1) + R_(2))`

Answer

D

Explanation

दो प्रतिरोधों `R_(1)` और `R_(2)` के समांतर कर्म संयोजन का तुल्य प्रतिरोध
`(1)/(R_(p)) = (1)/(R_(1)) + (1)/(R_(2)) = (R_(1) + R_(2))/(R_(1)R_(2))`
`rArr R_(p)= (R_(1)R_(2))/(R_(1) + R_(2))`