Question

explain the following(1) the elements of electric heating devices such as bread toaster and electric iron are made of an alloy rather than a pure Metal (2)series arrangement is not used for domestic circuits (3)copper and Aluminium wires are usually employed for Electricity Transmission

Answer 1

1.Alloy has more resistivity than pure metal. More resistivity made the current more in the form of heat hence they are used as the heating element.
2.series has higher equivalent resistance that resist current to pass through it. I. E. Higher the resistance lower the current. And if any appliance has a fault whole circuit break and no supply will be given.
3. Copper and aluminium has greater conductivity and lower resistivity

Answer 2

==============ⓢⓦⓘⓖⓨ

$\bold\red{hello...frd\:swigy\:here}$

$\bold\green{Your\:Answer:-}$

1) 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. It produces large amount of heat and do not burn easily.

c) series arrangement is not used in domestic circuits. Because

◾ There is voltage division in series circuits. Each component of a series circuit receives a small voltage for a large supply voltage. As a result, the amount of current decreases and the device becomes hot.

e)

◾ Copper and aluminium wires have low resistivity.

◾ They are good conductors of electricity. Hence, they are usually employed for electricity transmission.

I hope, this will help you

Thank you____❤

✿┅═══❁✿ $\bold\green{BeHappy}$ ✿❁═══┅✿