Draw A Circuit Diagram Of Potentiometer To Determine Internal Resistance Of A Cell
In doing so first we connect cell in potentiometer and measure the value of length where galvanometer shows zero deflection.
Draw a circuit diagram of potentiometer to determine internal resistance of a cell. Asked apr 24 2019 in physics by simrank 72 0k points. Give reasons why potentiometer is superior to voltmeter for determining internal resistance. R is the shunt resistance in parallel with the given cell.
The connections should be according to the diagram shown above. Potentiometer working circuit diagram construction types resistor a small bundle of resistance is one of the most used basic components in an electric circuit. Where l1 and l2 are balancing lengths without shunt or with the shunt.
Mostly used to regulate the current flow by adding subtracting resistance from the circuit these resistors are available in many shapes and sizes. Explain with the help of this diagram a method to find the internal resistance of a primary cell. The internal resistance of the cell is given by.
With the collected data and by applying appropriate formula we find the internal. Here the internal resistance of the cell is given by. Apparatus a potentiometer a battery or battery eliminator two one way keys a rheostat of low resistance a galvanometer a high resistance box a fractional resistance box an ammeter a voltmeter a cell say leclanche cell a jockey a set square connecting wires and a piece of sand paper.
Derive formula for obtaining internal resistance of a primary cell with help of potentiometer. To determine the internal resistance of given primary cell using potentiometer.