State the significance of the following devices in the domestic electric circuit (1)main switch (2) mains fuse (3) electricity metre

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Solution

Dear Student ,
$(i) M a i n s w i t c h i s u s e d t o c u t o f f t h e c o n n e c t i o n o f t h e w h o l e h o u s e a t o n c e . I t i s u s e f u l i n c a s e o f e l e c t r i c a l f i r e s a n d s h o r t c i r c u i t t o c u t o f f t h e e l e c t r i c i t y c o n n e c t i o n . (i i) M a i n f u s e p r e v e n t s a l l t h e a p p l i a n c e s o f t h e h o u s e b y b r e a k i n g t h e c i r c u i t w h e n e x c e s s c u r r e n t i s s u p p l i e d . (i i i) E l e c t r i c m e t r e m e a s u r e s t h e r e a d i n g o f c o n s u m e d p o w e r i n t h e c i r c u i t . S o w e c a n k n o w w h a t a m o u n t o f e l e c t r i c a l p o w e r i s c o n s u m e d .$

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Similar questions

Circuit Breaker Device which can be used in place of fuse in domestic electric wiring is called :

(a) Why are fuses fitted in the fuse box of a domestic electricity supply ?

(b) What device could be used in place of the fuses ?

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