Question
How will you infer with the help of an experiment that the same current flows through every part of the circuit containing three resistances in series connected to a battery?
✓
Answer
Perform an activity to show that in series combination of resistors, same current flows through each resistor.
1. Connect three resistors of resistances $R_1=1 \Omega, R_2=2 \Omega$ and $R_3=3 \Omega$ in series.
2. Connect the series combination of resistors with a battery of 6 V , a plug key K and an ammeter A as shown in figure.
5. Again plug the key and note the reading of ammeter. It is found that again it is I.
6. Now disconnect the ammeter and connect it in between the resistors $R _2$ and $R _3$.
7. Plug the key and note the reading of ammeter. Again it is found to be I.
1. Connect three resistors of resistances $R_1=1 \Omega, R_2=2 \Omega$ and $R_3=3 \Omega$ in series.
2. Connect the series combination of resistors with a battery of 6 V , a plug key K and an ammeter A as shown in figure.
- Note the reading of ammeter after plugging the key. Let it be I.
- Now disconnect ammeter and connect it in between the resistors $R_1$ and $R_2$ as shown in figure.
5. Again plug the key and note the reading of ammeter. It is found that again it is I.
6. Now disconnect the ammeter and connect it in between the resistors $R _2$ and $R _3$.
7. Plug the key and note the reading of ammeter. Again it is found to be I.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.
- Name the form of energy.
- Is this energy ultimately derived from the sun or not?
- Explain how this form of energy can be converted into electricity.
- What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on this energy?
- Name the following:
- Metal that can be cut by knife.
- Lustrous non-metal.
- Metal that exists in liquid state at room temperature.
- Most malleable and ductile metal.
- Metal that is best conductor of electricity.
- Non-metal that can exist in different forms.
- How are alloys better than metals? Give composition of solder and amalgam.
Carbon cannot reduce the oxides of sodium, magnesium and aluminium to their respective metals. Why? Where are these metals placed in the reactivity series? How are these metals obtained from their ores? Take an example to explain the process of extraction along with chemical equations.
What is the difference between external and internal respiration.
In question 44 , what are the combinations of character in the $F_2$ progeny? What are their ratios?
→Name various plant hormones. Also, give their physiological effects on plant growth and development.
Breathing cycle is an essential process for the exchange of gases’. Justify this statement.
A and B are the two systems of control and coordination in the human body. The messages in system A are transmitted in the form of chemical substances C which travel comparatively slowly through the blood stream. The substances C are made in tissues D present in the head and trunk of human body. The messages in system b are transmitted very quickly in the form of electrical impulses through fibres E. The effect of messages transmitted by system b usually lasts for a much shorter time as compared to those transmitted by system A.
- Name the system A. What does system A consist of?
- Name the chemical substance C.
- What is tissue D? Name any five such tissues in the human body.
- Name the system B. What does system B consist of?
- Name the fibres E.
- State whether system A controls the working of system B or system B controls the working of system A.
How many pairs of chromosomes are present in human beings? Out of these how many are sex chromosomes? How many types of sex chromosomes are found in human beings?
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
When the solution of substance X is added to a solution of potassium iodide, then a yellow solid separates out from the solution:
- What do you think substance X is likely to be?
- Name the substance which the yellow solid consists of.
- Which characteristic of chemical reaction is illustrated by this example?
- Write a balanced chemical equation for the reaction which takes place. Mention the physical states of all the reactant and products involved in the chemical equation.