Filament Lamp Iv Graph. This is technically an improper test for ohmic behaviour as Ohms law states that the current is proportional to the voltage with all other physical conditions controlled the main one being. 8 marks c Using information from part biv explain why the change in resistance of the filament is less for a current change of.
Required practical - investigate current - voltage graphs. IV characteristic of a carbon resistor results table - worksheetpdf. Another way of saying this is that a filament operates independently of the.
Use the graph to calculate the resistance of the lamp at a number of different potential differences.
A filament lamp obeys Ohms law only within certain limits of voltage and current. IV graphs for a resistor and a filament lamp. The current is proportional to the potential difference. Jun 03 2017 If the slope of an IV graph for a device is straight then the device obeys Ohms law.
