Ohm's law Experiment presentation with Audio and Video for std 12 Physics

Ohm's Law
AIM :-A voltmeter, a current meter, and an unknown resistance etc. are given to you. Prepare an appropriate circuit to verify Ohm’s law. With appropriate values of current and voltages, only with the help of calculations, determine the value of unknown resistance.
PRINCIPLE : Potential difference in a conductor produces electric current.
APPARATUS :-
A unknown resistance,
a voltmeter (0 - 10 V),
a milliammeter (0 - 500mA), a battery,
a rheostat,
a tap key,
connecting wires.

Internal Resistance of Primary Cell Experiment Potentiometer for std 12

Internal Resistance of Primary cell With the help of Potentiometer
EXPERIMENT :- 7
Internal resistance of primary cell
AIM :
To find the internal resistance of a primary cell, by calculation and from a graph, with the help of a potentiometer.
PRINCIPLE :
It works on the principle of potentiometer.
Apparatus:
A potentiometer having a long (~400 cm) resistive wire of uniform cross-section, a battery E of 3 to 4 V, a primary cell ( dry cell or Laclanche cell or a Daniel cell), two rheostats [ 0 – 25 W (Rh1) and 0 – 500 W (Rh2) ], a galvanometer, a R.B.(0 – 50 W), two simple keys and a jockey.

Internal Resistance of Primary Cell Experiment Apparatus

Internal Resistance Of Primary cell wiring diagram experiment

Internal Resistance Of Primary cell Observation table 

Internal Resistance Of Primary cell with graph 

Internal Resistance Of Primary cell Slop Experiment

Internal Resistance of Primary cell With Potentiometer Experiment Video