Voltage and Current Measurement in Series Combination
9 – VOLTAGE AND CURRENT MEASUREMENT IN SERIES COMBINATION
Aim:
To determine,Voltage, Current and value of resistance in series combination.
APPARATUS REQUIRED:
| Sl no | Name of Apparatus | Type | Specification | Qty |
| 1 | Voltmeter | |||
| 2 | Ammeter | |||
| 3 | Rheostat | |||
| 4 | Lamp |
THEORY:
- In series circuit, supply voltage will be equal to sum of the voltage drop across each resistance.
- Current same in the entire element in the circuit.
- Drop in volts depends on the value of resistance of each.
- Total resistance is equal to the sum of resistance connected.
PROCEDURE:
- Connect the accessories as per the diagram.
- Close the circuit and note the readings of voltmeter across each lamp and the supply voltage, also note the current.
- Repeat the experiment by changing wattage of each bulb.
- Tabulate the readings.
CIRCUIT DIAGRAM
TABULAR COLUMN
| Sl no. | L1 | L2 | L3 | I | V1 | V2 | V3 | Total= V1+V2+V3 | R1=V1/I | R2=V2/I | R3=V3/I | R=V/I | Total resistance R=R1+R2+R3 |
RESULT:
The given circuit is set up and voltage across each resistance and current is measured.
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