A full-wave bridge rectifier circuit with a 1-kohms load operates from a 120-V (rms) 60-Hz household supply through a 10-to-1 step-down transformer having a single secondary winding. It uses four diodes, each of which can be modeled to have a 0.7-V drop for any current. What is the fraction of a cycle that each diode conducts? What is the average voltage across the load? What is the average current through the load?

Solution Preview

Since the 10-to-1 step down transformer is used, the output of the transformer will be: 120/10 = 12 V (rms) at 60 Hz.

The voltage drop across each diode is 0.7 V. In the bridge rectifier, in each cycle, the half cycle current flows through two diodes and flows through another two diodes in the next.
i.e. below 0.7*2 = 1.4 V potential drop, no current will flow.

The output of the transformer can be given as:
V = ...

Solution Summary

The solution below outlines the average current and voltage found in the circuit, after outlining the specific amount of diodes and how they conduct themselves with respect to voltage and current.

We have a AC generator that is attached to a resistor with 500 kohms and a maximum voltage of 90 V. How do you calculate Imax, max power, avg power, rms current, rms voltage, and frequency.

Please help with the following problem. This
A) The difference of an ac waveform being displayed on an oscilloscope
is of 6.5 volts between 90° point and the 270° one .
What is the RMS value of the displayed signal ?
b) What is the value of the ac power that can perform the same
amount of work as a 24 dc

A transformer is an electrical device that can change the voltage from one value to another, based on the principle of Faraday's Law of Induction. Consider a transformer with Np turns of wire in the primary (input) circuit and Ns turns in the secondary (output). Which of the following statements are true? Briefly justify your an

A personal computer that has a built in monitor and keyboard requires 40W at 115V(RMS). What is the rms value of the current carried by the power cord?Can you show me how to solve this problem?

Q1. A 9 V power supply delivers 2 A to a resistive load. The a.c. supply is 230 V, 50 Hz and a bridge rectifier is used in conjunction with a 0. 047 farad reservoir capacitor.
Estimate:
(a) The peak-to-peak ripple voltage.
(b) The transformer secondary voltage if the total forward voltage
drop in the rectifier is 2 V at 2 A.

An ideal step-down transformer is used to convert the AC voltage from the power line at 120V to 5.0V in an adapter for your laptop computer.
(a) The primary coil has 2000-turns, how many turns are in a secondary coil?
(b) If the average power consumption of your laptop is 80W, what is the averagecurrent in the primary coil

Please see the attached file for full problem description.
1. The voltage across a 5 uF capacitor is v(t) = 10sin(377t) V. What current flows through the capacitor?
2. The current flowing through a 5 F capacitor i(t) = 5e^(-2t) A. Write down the voltageand plot it for seconds. The capacitor is initially uncharged.
3.

Please see the attached file for fig.
1) For the given circuit find :
a) Total equivalent resistance
b) Total current coming from the battery
c) Current flowing through R7 = 12 ohm resistor
d) Voltage drop across R7= 12 ohm resistor
e) Current flowing through R6 = 12 ohm resistor
f) Voltage drop across R6 = 12 o