Home
Class 12
PHYSICS
When two resistance are connected in par...

When two resistance are connected in parallel then the equivalent resistance is `(6)/(5)Omega` When one of the resistance is removed then the effective resistance is `2Omega`. The resistance of the wire removed will be

A

3 ohm

B

2 ohm

C

`3/5` ohm

D

`6/5` ohm

Text Solution

Verified by Experts

The correct Answer is:
A
`(R_(1)R_(2))/(R_(1) + R_(2)) = 6/5`, If `R_(2)` is removed `R_(1) = 2 Omega`
`(2R_(1))/(2+ R_(1)) = 6/5 rArr 5R_(1) = 6+ 3R_(2) rArr R_(2) = 3Omega`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two resistances are joined in parallel whose equivolent resistance is 3/5Omega . One of the resistance wire is broken and the effective resistance becomes 3Omega . The resistance (in ohms) of the wire that got broken was

Two resistances are joined in parallel of which equivalent resistance is 1.2 Omega . One of the resistance wire is broken and the effective resistance becomes 2 Omega , then the resistance of the wire that got broken was :

Two resistances are joined in parallel whose reusltant is 6//8 ohm . One of the resistance wire is broken and the effective resistance becomes 2 Omega . Then the resistance in ohm of the wire that got broken was

Two resistance wires on joining in parallel the resultant resistance is ohms (6)/(5) ohms. One of the wire breaks, the effective resistance is 2 ohms . The resistance of the broken wire is

When resistors 1 and 2 are connected in series, the equivalent resistance is 20.0 Omega. When they are connected in parallel, the equivalent resistance is 3.75 Omega. What are (a) the smaller resistance and (b) the larger resistance of these two resistors?

The equivalent resistance of two resistor connected in series is 6 Omega and their equivalent resistance is (4)/(3)Omega . What are the values of resistances ?

A resistance of 2 Omega is connected in parallel to a galvanometer of resistance 48 Omega . The fraction of the total current passing through the resistance of 2 Omega is