Electronics - Series-Parallel Circuits - Discussion

15. 

How much voltage is dropped across R3 in the given circuit?

[A]. 46 V
[B]. 34 V
[C]. 23 V
[D]. 12 V

Answer: Option D

Explanation:

No answer description available for this question.

Harshitha said: (May 4, 2011)  
Parallel resistance along R2,R3,R4=24

Total resistance= R1+(R2||R3||R4) =92

Total current= (v/i)= 46/92 =0.5A

Voltage drop across R3= 24*0.5= 12v

Salini said: (Sep 30, 2015)  
I am not getting 24 in parallel resistor value.

Pinkie said: (Oct 20, 2015)  
Meaning of ||?

Prathmesh said: (Dec 2, 2015)  
|| means parallel.

Balasabarish said: (Dec 29, 2015)  
Parallel resistance along R2, R3, R4 = 24.

Total resistance = R1+ (R2||R3||R4) = 92.

Total current = (v/i) = 46/92 = 0.5 A.

Voltage drop across R1 = Total current*R1 = 34.

Voltage drop across R3 = Source Voltage - Voltage drop across R1.

= 46-34 = 12 V.

Hamsanandhini said: (May 30, 2016)  
It is very easy. Thanks for the explanation.

Raja said: (Oct 17, 2016)  
@Balasabarish.

Why did you use R1*.5. Should you use R3*.5 rite?

Rohit said: (Nov 16, 2018)  
In question, it asked voltage drop at R3 terminal and 24 is the parallel resistance of the circuit.

Kumar said: (Aug 1, 2019)  
Parallel resistance along R2, R3, R4 = 24.

Total resistance= R1+(R2||R3||R4) = 92,
Total current= (v/i)= 46/92 =0.5A,
Voltage drop across R3= 24 * 0.5 = 12.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.