Question

Wheatstone network for resistances use are 5 ohm 12 ohm 6 ohm and 10 ohm in order calculate water resistance connected in series with 6 ohms to balance the bridge

Answer 1

Answer:

Explanation:

The equivalent resistance of the 30 ohm arm, after attaching a parallel resistance across it, must be 10 ohm, so that the bridge becomes balanced.

So, we have, for the attached parallel resistance R:

30

1

​  

+  

R

1

​  

=  

10

1

​  

⇒  

R

1

​  

=  

10

1

​  

−  

30

1

​  

=  

15

1

​  

⇒R=15 Ω