give an experiment to determine the equivalent resistance of two resistors when connected in a series with appropriate figure
please don't spam and it's urgent...
Answers
Explanation:
A circuit is said to be in a parallel connection when the resistors are connected in such a way that they branch out from one point. The potential difference in a parallel circuit is the same for each resistor and the current flow is not the same for all resistors. The total current flow through the circuit is calculated by summing up the current flow through each resistor. Parallel circuit connections find application in household electric distribution. The reason why a parallel circuit is preferred is to avoid short circuits and to monitor the flow of current for different devices. The other type of circuit is a series connection. Below is an experiment to determine the equivalent resistance when the resistors are connected in parallel.
Aim
To determine the equivalent resistance of two resistors when connected in parallel.
Theory
If the resistors are connected in parallel along with a battery, then the total current I is calculated as a sum of the separate value of current through each branch. It is given as:
I = I1+I2+I3+….
Materials Required
A battery
A plug key
Connecting wires
An ammeter
A voltmeter
Rheostat
A piece of sandpaper
Two resistors of different values
circuit diagram of the equivalent resistance of two resistors when connected in parallel.
Procedure
1. Make all the connections as shown in the experimental setup I by keeping the key off.
2. Insert the key when the circuit is connected appropriately.
3. For resistors R1 and R2, note three readings of ammeter and voltmeter.
4. Connect the circuit as shown in the experimental setup II.
5. Resistors and voltmeter both are connected in parallel.
6. Record three different readings of ammeter and voltmeter and also use a rheostat.
7. Remove the key.
8. With the help of the observation table, do the calculations.
