12 Physics Current Electricity - Set No : 47 Question No :10
Question No : 10
 and  are four resistances of  respectively. They are used to form
a Wheatstone bridge. The resistance is short circuted with a
resistances R in order to get the bridge balanced. The value of  will be |
| a) |  | b) |  |
| c) |  | d) |  |
Answer No : 10
(b)The bridge
will be balanced when the shunted resistance of value  . On solving  |