Advertisements
Advertisements
Question
An electric bulb is connected to a cell through a switch as shown in the following figure. When the switch is brought in ‘ON’ position, the bulb does not glow. What could be the possible reason/s for it? Mention any two of them.
Advertisements
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
Select the correct alternative
In a torch, the source of electricity is
Name the +ve terminal of dry cell.
An electric cell has ______ terminals.
What are the types of cells? Give examples.
______ was developed is 1887 by Yei Sakizo of Japan
______ cell is used to operate devices such as mobile phones, computers, and emergency lights.
A battery is a group of ______.
Figure A and B, show a bulb connected to a cell in two different ways.
- What will be the direction of the current through the bulb in both the cases. (Q to P or P to Q)
- Will the bulb glow in both the cases?
- Does the brightness of the glowing bulb depend on the direction of current through it?
Fig. 12.10 A and B, show a bulb connected to a cell in two different ways.
Does the brightness of the glowing bulb depend on the direction of current through it?
Think of six activities which use electric current. Also name the devices used to perform the activity.
| Example: | Activity you perform | Device |
| Get light | Torch | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- | |
| ___________ | -------------- |
