Find the current through and the potential difference of resistor

  • Thread starter rayhan619
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  • #1
rayhan619
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Homework Statement



For the circuit shown in the figure, find the current through and the potential difference across each resistor. (Figure attached)
a) Find the current through 4.0 ohm resistor.
b) Find the potential difference across 4.0 Ohm resistor.

Homework Equations



V = IR
Q = VC

The Attempt at a Solution

 

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Answers and Replies

  • #2
Feldoh
1,342
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So how far have you gotten on your own?
 
  • #3
rayhan619
77
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so the current through 4.0 ohm resistor, I = V/R = 24 V/4 Ohm = 6 A
and the potential difference ?
 
  • #4
rl.bhat
Homework Helper
4,433
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Using formula for series and parallel combination of resistances find the total resistance of the circuit.
 
  • #5
rayhan619
77
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If i did it right then the total resistance should be 12 Ohm
So I = V/R= 24 V/ 12 Ohm = 2 A.
Right ?
how do I get potential difference?
 
  • #6
rl.bhat
Homework Helper
4,433
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2A is the current through 4 ohm. Find potential difference by using V = IR.
 
  • #7
rayhan619
77
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V = IR = 2A*4 Ohm = 8 V
 
  • #8
rayhan619
77
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Next question,
Find the current through 6.0 {Ohm resistor.
 
  • #9
rl.bhat
Homework Helper
4,433
9


Potential difference across 4 ohm resistor is 8V.
What is the pd across remaining circuit? From that find the current in each branch of the circuit.
 

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