MHT CET202526 Apr 2025Morning ShiftPhysicsAlternating CurrentActual
L, C and R are connected in series to an a. c. source. Which one of the following is true? Phase relation between current and voltage is such that
Options
- Aboth are out of phase with each other in 'R'.
- Bboth are in phase in 'L' and out of phase in 'C'.
- Cboth are out of phase in ' L ' and in phase in ' C '.
- Dboth are out of phase in both 'C' and 'L'.
Correct answer
D. both are out of phase in both 'C' and 'L'.
Step-by-step solution
Phase relationships in AC circuit elements For a resistor ( R ), voltage and current remain in phase. In an inductor ( L ), voltage leads current by 90^ : V_L leads I by /2 radians. For a capacitor ( C ), current leads voltage by 90^ : I leads V_C by /2 radians. Both L and C exhibit 90^ phase differences between voltage and current, making them out of phase in both cases. The correct statement is D .