Explain with neat circuit diagram, how you wil determine the unknown resistance using a meter bridge.

Explain the use of Wheatstone's meter bridge to determine an unknown resistance.

Describe with the help of neat diagram how will you determine the internal resistance of a cell by using potentiometer. Derive the necessary formula.

Explain with neat ray diagram, the formation ofimage in a concave lens.

Describe the construction of meter bridge to determine an unknown resistance.

Describe the construction Kelvin's method to determine the resistance of Galvanometer by using meter bridge.

Explain the use of potentiometer for determining he internal resistance of cell.

Four resistances 5 Omega , 10 Omega , 15 Omega and an unknown X Omega are connected in series so as to form Wheatstone's network. Determine the unknown resistance X,if the network is balanced with these numerical values of resistances.

Answer the following : Explain with a neat diagram , how is atmospheric pressure created . Does it depend on height above sea level ?

In a meter bridge experiment, the unknown resistance X in the left gap and a known resistance of 60 Omega in right gap, null point is obtained at l cm from left. If the unknown resistance X is shunted by an equal resistance, what should be the value of known resistance in the right gap in order to get the null point at the same place?

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistance in each gap is shunted by a resistance of 8 Omega .