9.
Two uneaqual resistance wires of same material are connected in series, one is of length L and the other of 2l to same potential source. what can ve said about the voltage drop and current across the two wires
Answers
Answered by
5
Step-by-step explanation:
4l
I hope it may help to you
Answered by
0
Answer:
follow me
likes my All ans
Step-by-step explanation:
Since the two wires have same material, length and diameter, they have the same resistance. Let the resistance of each wire be R.
Let applied potential difference be V.
R
series
=R
1
+R
2
=R+R=2R
P
series
=V
2
/R
series
=V
2
/(2R)..........(i)
R
parallel
1
=
R
1
1
+
R
2
1
R
parallel
=R/2
P
parallel
=V
2
/R
parallel
=2V
2
/R............(ii)
Dividing (ii) from (i),
P
parallel
P
series
=1/4
Similar questions