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

Describe the construction of potentiometer.

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

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

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.

Describe construction and working of photoelecric cell.

The unknown resistance is placed in a left gap and a resistance of 50 Omega in right gap of meter bridge. The null point is obtained at 60 cm from the right gap. Determine the unknown resistance.

Describe the construction and working of compound microscope.

What determines the conventional direction of the product of current and resistance while applying the Kirchhoff's law ?

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

A metrebridge is set-up as shown, to determine an unknown resistance 'X' using a standard 10 ohm resistor. The galvanometer shows null point when tapping-key is at 52 cm mark. The end-corrections are 1 cm and 2 cm respectively for the ends A and B. The determined value of 'X' is