(A) (i) Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for…
(A) (i) Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for the long distance transmission of electric power ?
(ii) How is the type of current used in household supply different from the one given by a battery of dry cells ?
(iii) How does an electric fuse prevent the electric circuit and the appliances from a possible damage due to short circuiting or overloading.
Solution
(A) (i) Alternating current can be transmitted over long distances without much loss of electric energy.
(ii) Household supply – Alternating current (AC)
Battery of Dry cell – Direct current (DC)
(iii) It melts and breaks the circuit when a current of higher value than its rating flows through it.
