Electrical Engineering - Series Circuits - Discussion
Discussion Forum : Series Circuits - General Questions (Q.No. 2)
2.
A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is
Discussion:
51 comments Page 2 of 6.
Sirkudos said:
9 years ago
The answer 6v is correct because resistance connected in series have different voltage with the same current. In reference to the question, the rest of the voltage are the same but R3 is different. Note only 6V that is the supply voltage.
Latha said:
1 decade ago
In series connected resistors the current flowing through it ll b same but de voltage gets divided. As the question says voltage across the resistors are zero except at r3 which clearly means the entire applied voltage s across r3.
Arul said:
1 decade ago
The resistor r3 is connected at first in series. So, the resistance value of the resistor r3 is high to drop that entire 6volt which may be connected to ground. So there is zero voltage appear across next coming series resistor.
Vivek singh said:
1 decade ago
It means other than R3 all resistance are zero, because of it in series connection current is same,
If I=0 then no meaning of R3.
But according to kirchoff's circuit is false.
So.
If R1, R2, R4, R5=0 then R3=6 if I=1amp.
If I=0 then no meaning of R3.
But according to kirchoff's circuit is false.
So.
If R1, R2, R4, R5=0 then R3=6 if I=1amp.
Priti singh said:
1 decade ago
Voltage is zero means register is shorted i.e. zero valued resistor is present there and therefore the entire value of circuit voltage appears across the resistor having some value. So the right answer will be 6v.
Viren waghela said:
1 decade ago
In series circuit, value of current remain same. So according to question if value of voltage measure zero across all resistor, means the value of current is zero and it same for all resistor. So answer zero.
Gayathri Ramesh said:
9 years ago
In open circuit there will b zero current so voltage drop is equal to the actual voltage. Since are 1, 2, 4, 5 are zero resistance the net voltage at R3 is 6. Which also means the current in series is same.
Mansoor said:
1 decade ago
Resistors connected in series, So circuit current is same, Voltage across R1 R2 R4 R5 is zero. V = IR so the current remain zero, Voltage across R3 = IR3 i.e =0*R3 Final answer V3=0 option "A"
Ashok kumar said:
1 decade ago
If they are connected in series then the voltage across R3 is zero. If connected in parallel or series parallelly subdivided then we may conclude about the voltage across R3 is non zero value i.e. 6v.
Douglas said:
1 decade ago
Current flowing through resistors is same and let it be I. Voltage drops across resistors rated zero will be i*r which will be equal to zero. The voltage across resistor 3 will be 6 volts.
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