Advertisements
Advertisements
Question
An electric bulb is connected to a cell through a switch as shown in Fig. 12.7. When the switch is brought in the ‘ON’ position, the bulb does not glow. What could be the possible reason/s for it? Mention any two of them.
Solution
There could be the following reasons for it:
- Cell is a used one.
- Bulb is fused.
- Loose connections.
- Break in connecting wires.
APPEARS IN
RELATED QUESTIONS
State two precautions that you must take when switching on an electric circuit.
Describe the construction, working and usefulness of a dry cell, with the help of a diagram.
Name the -ve terminal of a dry cell.
Primary cells are usually produced in large sizes.
Analogy.
Primary cells:: Toys
Secondary cells:: ______.
What is meant by a battery or collection of cells?
______ was developed is 1887 by Yei Sakizo of Japan
Match the following
| 1. | Dry cells | a. | Reversible |
| 2. | Electrolyte | b. | Opens or closes the circuit |
| 3. | Switch | c. | Solution |
| 4. | Secondary cell | d. | Torches |
Choose the incorrect statement.
Think of six activities that use electric current. Also, name the devices used to perform the activity.
| Example: | Activity you perform | Device |
| Get light | Torch | |
