Why are domestic circuit not arranged in a series combination?
1- Domestic circuits aren’t arranged in a series combination because if at a point any one component stops working then regardless of other working nature they will stop working also as current will not flow through them.
Why different electrical appliances in a domestic circuit are connected in parallel?
Electrical appliances are connected in a parallel arrangement in a house circuit because: Each appliance gets full voltage as resistance in a parallel arrangement is low. If one appliance fuses, it does not affect the working of other appliances. We can use one appliance without using other appliances.
Why is the series arrangement not used for domestic circuit Brainly?
Answer. Series arrangement is not used for domestic circuits due to following reasons : (2) Total resistance of domestic circuit will be sum of the resistance of all appliances and hence current drawn by the circuit will be less. (3) We cannot use independent on/off switches with individual appliances.
What is an electric circuit distinguish between an open and a closed circuit?
An open circuit is an incomplete circuit and current does not flow though it, while a closed circuit is a complete circuit and current flows through it.
How Does use of a fuse wire protect electrical appliances?
The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.
Why is the tungsten used almost exclusively for filament?
The metal tungsten is almost exclusively used for the filament of the electric lamp because it has a very high melting point due to which it does not melt even when it is heated to high temperatures due to the passage of electric current.
Why do we connect all appliances with copper but not with tungsten?
Tungsten has very high melting point and very high resistivity so does not burn easily at a high temperature. (b) The conductors of electric heating devices such as bread toasters and electric irons are made of alloy because resistivity of an alloy is more than that of metals which produces large amount of heat.
Why is the tungsten used almost?
Answer. Tungsten metal is used exclusively for making the filament of electric bulbs because it has a very high melting point. Due to its high melting point, the tungsten filament can be kept white hot without melting away.
Why tungsten is not used in heater?
Generally not. Tungsten oxidizes rapidly in air at high temperatures. Heating elements are generally made from alloys like Nichrome or Kanthal which won’t oxidize. Tungsten has a much higher melting point, but it needs an inert atmosphere or a vacuum, such as inside an incandescent lamp.
Why is tungsten used in light bulbs instead of copper?
A: Tungsten is used as the filament in incandescent light bulbs because it has the highest melting point of any metal (greater than 3400 deg. Celsius) and the higher the temperature, the greater the efficiency and whiter the light.
Why copper and Aluminium are used for electrical transmission lines?
Copper and aluminium are most frequently used as the electrical conductors in electrical cables due to their low resistance and excellent conductivity. These metals are both ductile and relatively resistant to corrosion, but they also have different properties which make them useful for various applications.