Electronic Circuits and Projects Forum

1. Need help with my homework on Resistance & Inductance series circuit

I have about 6 questions on my homework that I just cant understand. Here is one of them, "An RL series circuit is connected to a 120-volt 60Hz line. The inductor has a voltage drop of 54 volts. What is the voltage drop across the resistor?"

Would the answer just be 120v/54v= 2.22 voltage drop across the resistor? Can someone help me with this and possibly 5 more questions?

2. Draw a phasor diagram. And use Pythagorus to calculate the resistor voltage.

3. Originally Posted by dougbndr
I have about 6 questions on my homework that I just cant understand. Here is one of them, "An RL series circuit is connected to a 120-volt 60Hz line. The inductor has a voltage drop of 54 volts. What is the voltage drop across the resistor?"

Would the answer just be 120v/54v= 2.22 voltage drop across the resistor? Can someone help me with this and possibly 5 more questions?

Hi there,

ljcox idea is a good one, if you have used phasors in the past you can do it like that.
What we dont know is what you have actually done in the past, what kind of math and what kind of analysis have you done before? If you are going to ask more questions this will help everyone here to help with your questions as they will know what you have dealt with already in the past and can tailor the solutions to your background a lot better.

 Tags
 Similar Threads Thread Starter Forum Replies Last Post Complete beginner. Need help with LM386 amp project Tommyduke Electronic Projects Design/Ideas/Reviews 5 22nd February 2010, 07:20 PM Need help with op-amp circuit Jack_K Electronic Projects Design/Ideas/Reviews 1 5th September 2009, 04:09 PM Need help with an audio amp (schematics and resistors) Ballard General Electronics Chat 4 28th June 2009, 02:38 PM Need help with LM386 amp vcuauhtemoc Electronic Projects Design/Ideas/Reviews 16 22nd April 2009, 07:15 PM Need help with mini guitar amp leglesslizard Electronic Projects Design/Ideas/Reviews 4 16th March 2007, 11:18 PM
Electronic Circuits  |  Learning Electronics

Join our community with over 100,000 Members! It's free, easy and when you're logged in you have many more features! Click to register.
Page Time: 0.05243 seconds      Memory: 7,236 KB      Queries: 16      Templates: 0