Advertisements
Advertisements
प्रश्न
How should the several electric lamps be connected with the mains so that the switching on or off a lamp has no effect on the operation of other lamps?
उत्तर
All the electrical appliances in a building should be connected in parallel at the mains, each with a separate switch and a separate fuse connected in the live wire so that the switching on or off in a room has no effect on other lamps in the same building.
APPEARS IN
संबंधित प्रश्न
Identify the following wires used in a household circuit: The wire is also called as the phase wire.
State the function of the following in a house circuiting kWh meter.
Where is the main fuse in a house circuit connected?
Two sets A and B of four bulbs each are glowing in two separate rooms. When one of the bulbs in set A is fused, the other three bulbs also cease to glow. But in set B, when one bulb fuses, the other bulbs continue to glow. Explain the difference in the two sets.
The electric meter in a house records the consumption of ______.
In following figure shows three bulbs A, B and C each of rating 100 W, 220 V connected to the mains of 220 V. Answer the following:
- How is the bulb A connected with the mains? At what voltage does it glow?
- How are the bulbs B and C connected with the mains? At what voltage does the bulb B glow?
- How is the glow of bulbs A and C affected if bulb B gets fused?
- How is the glow of bulbs B and C affected if bulb A gets fused?
Which electrical component protects the electric circuit in case of excess current and which can also be used as a switch?
Name the wire to which this electrical component is connected in an electric circuit.
If live wire makes an accidental contact with the metal case, which circuit (A or B) in the diagram, illustrating an electric iron, is considered safe for the user (Assuming the fuse is present in the live wire in both circuits)? Justify your answer.
Two sets A and B each of four bulbs are glowing in two separate rooms. When one of the bulbs in set A is fused, the other three bulbs also cease to glow. But in set B, when one bulb fuses, the other bulbs continue to glow. Which set of arrangement is preferred in housing circuit and why?