Physics·Prelims Questions

Diode as Rectifier — Prelims Questions

NEET UG
Updated 23 Mar 2026
Q1medium

A half-wave rectifier circuit uses a diode with a forward resistance of 10,Ω10,\Omega and a reverse resistance of infinity. The input AC voltage is V=100sin(314t),VV = 100 \sin(314t),\text{V} and the load resistance is RL=990,ΩR_L = 990,\Omega. What is the average DC current in the circuit?

Q2medium

Which of the following statements is INCORRECT regarding a full-wave bridge rectifier?

Q3medium

A full-wave rectifier circuit delivers a DC output voltage of 10V10\,\text{V} to a load resistor of 100,Ω100,\Omega. If the peak voltage across the secondary winding of the transformer is VmV_m, what is the approximate value of VmV_m for a bridge rectifier?

Q4easy

A rectifier circuit has an input AC frequency of 50Hz50\,\text{Hz}. What is the ripple frequency of the output for a half-wave rectifier and a full-wave rectifier, respectively?

Q5medium

A capacitor filter is connected across the output of a full-wave rectifier. If the load current increases, what happens to the ripple voltage across the load?

Q6easy

In a center-tap full-wave rectifier, the peak voltage across half of the secondary winding is VmV_m. What is the Peak Inverse Voltage (PIV) that each diode must withstand?