This document outlines an experiment to verify Ohm's Law. The experiment involves connecting resistors in series and parallel circuits using a breadboard, power supply, ammeter, and voltmeter. Voltage and current readings are recorded for different resistor values and circuits. A graph of voltage versus current is plotted, and the slope is used to calculate resistance. The calculated resistances are then compared to measured resistances to verify Ohm's Law.

1. Verification of ohms law
Aim: To conduct a suitable experiment for verifying the ohms law.
Apparatus required:
S.No Name of the
equipment
Range/Specification Type Quantity
1 Ammeter (0-200mA), 3
2 Voltmeter (0-30V) 3
3 RPS (0-30V),2A -- 1
4 Bread board 1A -- 1
5 Resistors Carbon
composed
2
6 Connecting
wires
1/22 Single Stranded
conductor
Copper Required
Procedure:
1. Connections are made as per the circuit diagram
2. Switch on the power supply.
3. For various values of voltage V, note down the values of current
4. Draw a graph of Voltage Vs Current.
5. The Slope of the graph gives the resistance value.
6. Verify ohms law by measuring the value of R using multimeter and comparing it
with practical value

3. Tabular column for series :
S.No Applied voltage Current (mA) Voltage
(V1)
Voltage
(V2)
Tabular column for parallel:
S.No Applied voltage Current (mA)
(I)
Current (mA)
(I1)
Current (mA)
(I2)
Theoretical calculations:
Series circuit:
V= V1 + V2
R= R1 + R2
I=
𝑉
𝑅
V1= I R1
V2= I R2
Parallel circuit:
I= I1 + I2
R=
𝑅1𝑅2
𝑅1+𝑅2
I=
𝑉
𝑅
I1=
𝑉
𝑅1
I2 =
𝑉
𝑅2

4. Precautions:
1. Connections should be tight
2. Check the connections before switching on the supply
3. Readings should be taken without parallax errors.
Result: