Question 393: AC fundamentals

Question

For series LCR circuit, which one of the following is a CORRECT statement?

Accepted Answer

(A) is correct
(B) is wrong. There is phase difference $$\phi$$ between the applied emf e and $$e_R$$
(C) is wrong. There is phase difference of $$(\frac{\pi}{2}-\phi)$$ between e and $$e_L$$
(D) is wrong. There is a phase difference of $$\pi^c$$ between $$e_C$$ and $$e_L$$ $$	herefore \mathrm{B}, \mathrm{C}$$ and $$\mathrm{D}$$ are wrong.

Answer

Potential difference across resistance $$\mathrm{R}$$ and that across capacitor have phase difference $$\frac{\pi^{\mathrm{c}}}{2}$$.

Answer

Applied e.m.f. and potential difference across resistance '$$R$$' are in the same phase

Answer

Applied e.m.f. and potential difference inductor coil has phase difference of $$\frac{\pi^{\mathrm{c}}}{2}$$

Answer

Potential difference across capacitor and that across inductor have phase difference of $$\frac{\pi^{\mathrm{c}}}{2}$$.

AC fundamentals

For series LCR circuit, which one of the following is a CORRECT statement?

Choose the correct answer: