A Wheatstone bridge has the resistances ...

A Wheatstone bridge has the resistances `10Omega,10Omega,10Omega` and `30Omega` in its four arms. What resistance joined in parallel to the 30 resistance will bring it to the balanced condition?

`2Omega`

`5Omega`

`10Omega`

`15Omega`

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A balanced Wheatstone bridge has resistances 100Omega , 10Omega, 500Omega and 50 Omega repectively in its four arms. Determine the ratio of powers consumed in its different arms.

The resistance of the four arms of a wheatstone bridge are 100Omega,10Omega,300Omegaand 30Omega respectively . A battery of emf 1.5 V and negligible internal resistance is connected to the bridge . Calculate the current flowing through each resistance .

The value of an unknown resistance is found to be 8Omega when it is determined with the help of a wheatstone bridge by using known reistance 100Omega , 10Omega and 80 Omega . The emf of the electric cell used is 2 v and its internal resistance is 1.1Omega Determine the value of current flowing through the cell .

In a Wheststone bridge P=20 Omega,Q=10Omega,R=10Omegaand S=5Omega . . What is the ratio of power consumed in Q and R resistance ?

With two resistances 2 Omega and 3 Omega In parallel a third resistance of 4 Omega is connected in series.Find their equivalent resistance.

Given the resistance of 1Omega,2Omega,3Omega, how will you combine them to get an equivalent resistance of: 6Omega

We deremine the value of the fourth resistance to be 8Omega with the help of a Wheatstone bridge with three known resistance 100Omega , 10Omega , 80 Omega respectively . If the emf of the cell and its internal resistanc be 2 v and 1.1Omega respectively , find the current passing through the cell .

ABCD is a Wheatstone bridge in which the resistanvely 2Omega , 4 Omega , 6Omega and 8Omega . The points A and C are connected to the termicals of a cell of emf 2 v and negligible internal resistance . The points B and D are connected to a galvanometer of resistance 50Omega . Using Kirchhoff's laws find the current flowing through the galvanometer .

The resistance in the three arms of a Wheatstone bridge are repectively 15Omega , 10Omega and 22.5Omega. when a copper coil is placed in the fourth arm of the bridge at 0^(@)C the bridge ramains balanced . But to restore the balance of the bridge at 50^(@)C of the coil temperature an additinal resistance r has to be arranged in parallel with the coil . What is the value or ? (temperture cofficient of resistance of copper =0.00425^(@)C^(-1)

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-Subject: Physics

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