NEET Physics Alternating Current Questions Solved


The power factor of an ac circuit having resistance (R) and inductance (L) connected in series and an angular velocity ω is 

(1) R/ωL

(2) R/(R2+ω2L2)1/2

(3) ωL/R

(4) R/(R2ω2L2)1/2

(2) cosϕ=RZ=R(R2+ωL2)1/2  

Difficulty Level:

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