NEET Physics Alternating Current Questions Solved

NEET - 2011

An AC voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to 3Ω, the phase difference between the applied voltage and the current in the circuit is

(a) π/4                                                 (b) π/2

(c) zero                                                  (d) π/6

tan ϕ=XLR=R           tan ϕ=3Ω3Ω           tan ϕ=1                  ϕ=tan-1(1)                  ϕ=45°                  ϕ=π4rad 


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