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 3 of 6.
Kola ashok kumar said:
9 years ago
The answer is 6v.
> voltage is zero when current is zero or resistance is zero.
Current cannot be zero.
So resistance is zero, may be a short circuit across the resistors.
> voltage is zero when current is zero or resistance is zero.
Current cannot be zero.
So resistance is zero, may be a short circuit across the resistors.
Ramesh said:
1 decade ago
IF CURRENT FLOWS THROUGH R3 IS ZERO, THERE MAY NOT BE ANY VOLTAGE DROP i.e v=ixr3 => 0xr3=0.when r1, r2, r4,r5=0,and r3=6ohms , current=1amp, then v3=ixr3=> 1x6= 6ohms.
Prakash pritam said:
9 years ago
From the law,
Input voltage = output voltage,
We have,
Vr1 + Vr2 + Vr3 + Vr4 + Vr5 = Vout = 6. All values are zero except Vr3.
=> 0 + 0 + Vr3 + 0 + 0 = 6,
Hence, Vr3 = 6.
Input voltage = output voltage,
We have,
Vr1 + Vr2 + Vr3 + Vr4 + Vr5 = Vout = 6. All values are zero except Vr3.
=> 0 + 0 + Vr3 + 0 + 0 = 6,
Hence, Vr3 = 6.
Sunil said:
1 decade ago
A starting all 5 resisters are connected 6 volts, in series connection there are all ways same voltage in all resister. Starting are IS 6V r3 resister is always 6v.
Akash ray said:
1 decade ago
@Jagmel I agree with you.
AS it is given in resistors 12456 zero voltage. So either the resistance or the current in those resistors may be zero. So answer is 6V.
AS it is given in resistors 12456 zero voltage. So either the resistance or the current in those resistors may be zero. So answer is 6V.
Muneeb said:
6 years ago
The series circuit current is same voltage is divided according to statement all resistor voltage drop is zero then voltage appears r3 resistor so r3=6v.
(3)
M RAMESH said:
1 decade ago
If all resistors are connected in series, the current flow through the all resistors is always same. So value of current across R3 is also zero.
Venkata ramana said:
1 decade ago
Since all resisters are connected in series, such that the current flowing through R3 resister is zero (open circuit) , so therefore vr3=6v.
S.sasikumarB.E., said:
1 decade ago
Except R3 Resistance, all other resistance are zero so no current flow, so r3 also no current flow and no voltage R3=0.
Surya said:
1 decade ago
Resistor connected in series. Circuit current is 0.5A BUT R1245 VOLTAGE IS 0V. So according to ohm's law V = I*R = 6V.
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