Question
Explain the formation and uses of battery.
✓
Answer
A combination of two or more cells connected together is called a battery. It supplies electric current. It is formed by connecting the positive terminal of one cell to the negative terminal of another. To identify the positive and negative terminals, they are denoted as + and -, respectively. These batteries are used in many devices, such as torch lights, mobile phones, calculators and even automobiles.
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
Boojho's uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
(i) What is dialysis?
(ii) When does it become necessary to take such a treatment?
(i) What is dialysis?
(ii) When does it become necessary to take such a treatment?
At a camp site there are tents of two shades-one made with black fabric and the other with white fabric. Which one will you prefer for resting on a hot summer afternoon? Give reason for your choice. Would you like to prefer the same tent during winter?
How do forests help to maintain the water table?
Draw the circuit diagram to represent the circuit shown in figure.
Give a brief description of the process of synthesis of food in green plants.
Boojho noticed that when he released his breathe after holding it for some time, he had to breathe heavily. Can you tell him why it was so?
Explain flower of a plant.
State differences between acids and bases.
If we connect more cells in the circuit, then what will happen?
Whenever we feel drowsy or sleepy, we start yawning. Does yawning help us in anyway?