99 Percentile Qs Bank for JEE MainPhysicsSemiconductors
In the diode-based rectifier circuit given below, if V_s=V_m t and the diode is ideal, then the average value of V_L is
Options
- AR_L (R_L+R_S ) V_m
- BR_L V_m t
- CR_L (R_L+R_S ) V_m
- DR_L (R_L+R_S ) V_m t
Correct answer
A. R_L (R_L+R_S ) V_m
Step-by-step solution
Given, AC voItage, V_s=V_m t and V_m= maximum value of voltage In the given circuit diode will only conduct current in forward bias, so output across R_L will be Average voltage, V_ av = V_m average current I_ av = V_ av R Total resistance, R=R_S+R_L I_ av = V_m (R_S+R_L ) Now, voltage across R_L , aligned & V_L=I_ av R_L & V_L= R_L R_S+R_L V_m aligned