MCQOPTIONS
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				| 1. | 
                                    In an R-L-C circuit, v(t) = 20 sin (314 t + 5 π/6) and i(t) = 10 sin (314 t + 2π/3). The p.f of the circuit is | 
                            
| A. | 0.5 lead | 
| B. | 0.866 lag | 
| C. | 0.866 lead | 
| D. | 0.5 lead | 
| Answer» C. 0.866 lead | |