1. To verify Joules Law Measure temperature rise for various currents.
Graph temperature rise (y axis) against current squared (x axis).
Precautions
Keep mass of water and time for each reading constant.
Insulate the container

2. TO MEASURE THE RESISTIVITY OF THE MATERIAL OF A WIRE
Measure diameter at a few places. Measure the length. Measure the resistance.
A = π r2
Precautions
The longer the length the less the percentage error.
Remove all bends before measuring the length.

3. TO INVESTIGATE THE VARIATION OF THE RESISTANCE OF A THERMISTOR /METALLIC CONDUCTOR WITH TEMPERATURE
T/oC
THERMISTOR
R/Ω
T/oC
Measure resistance and temperature.
Graph resistance (y axis) against temperature (x axis)
METALLIC CONDUCTOR

4. TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P. D
TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P.D. (V) FOR A METALLIC CONDUCTOR AND A FILAMENT BULB
I/A
V/v
I/A
Bulb
V/V

5. TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P. D
TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P.D. (V) FOR COPPER SULFATE SOLUTION WITH COPPER ELECTRODES
I/A
V/v
Copper
Copper sulphate

6. TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P. D
TO INVESTIGATE THE VARIATION OF CURRENT (I) WITH P.D. (V) FOR A SEMICONDUCTOR DIODE
Forward Bias
I mA
Reverse Bias V
I uA