Two resistors `600Omega` each are connected in series with a battery 8V. If the resistance of first the increases by 0.5%, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is …………….`Omega`

Answer

`3`

Explanation

To keep p.d. unalterrd, both the resistances should be equal.
`:.`R sould be increased by
0.5% of 600
`=0.5/100xx600=3Omega`