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Urgent help required,nodal analysis

  • #1

Homework Statement



Im a first electrical eng student learning nodal analysis.I require help with a specific problem from fundementals of electric circuits.Please explain step by step as i am new to this.Please see the attachment for the problems.
I am finding it hard to express the voltages across the 2k and 5k resistors.
Any help would be greatly appreciated!!!.Thanks in advance!



Homework Equations





The Attempt at a Solution

 

Attachments

Answers and Replies

  • #2
3,812
92
Hello akshay! Welcome to PF!
The forum rules says that the OP needs to show his/her attempt before asking for help on the problem.
Did you try to apply KCL or KVL? There is even a shorter method too to solve this problem.
 
  • #3
ive tried applying it but cant seem to understand how to get the voltage across the 2k and 5k resistors please help!.Im begging.
 
  • #4
i think u take the node at the top and maybe the top equals vo
so at the node so you have (vo-30)/2k+(vo-20)/5k+vo/4k
or something like that, im not really sure im a first year engineering student too :)
 
  • #5
CWatters
Science Advisor
Homework Helper
Gold Member
10,528
2,294
eg Apply KCL at the top node.
 

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