When an ac source of emf`e=E_(0) sin (100 t)` is connected across a circuit, the phase difference between emf e and currnet I in the circuit is observed to be `(pi)//(4)` as shown in fig. If the circuit consists possibly only of R-C or R-C of L-R series, find the relationship find the relationship between the two elements. A. `R= 1kOmega`, C=`10 muF`B. R=`1kOmega`, `C=1muF`C. `R=1kOmega`, L=10HD. `R=1Omega` L=1H

When an ac source of emf`e=E_(0) sin (100 t)` is connected across a ci

1.	When an ac source of emf`e=E_(0) sin (100 t)` is connected across a circuit, the phase difference between emf e and currnet I in the circuit is observed to be `(pi)//(4)` as shown in fig. If the circuit consists possibly only of R-C or R-C of L-R series, find the relationship find the relationship between the two elements. A. `R= 1kOmega`, C=`10 muF`B. R=`1kOmega`, `C=1muF`C. `R=1kOmega`, L=10HD. `R=1Omega` L=1H
Answer» Correct Answer - C c) EmF and AC source `E=E_(0)sin(100t)` We have, `omega=100` and `phi =pi/4=45^(@)` `tanphi = (omegaL)/R` `rArr I=(100 xx L)/(R)` If L=10H, then R=`kOmega`

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