What will happen when a lamp and lamp are connected in series across supply |
|||
a) |
lamp will fuse |
b) |
lamp will fuse |
c) |
Both lamps will fuse |
d) |
Neither lamp will fuse |
What will happen when a lamp and lamp are connected in series across supply |
|||
a) |
lamp will fuse |
b) |
lamp will fuse |
c) |
Both lamps will fuse |
d) |
Neither lamp will fuse |
(d)
Bulb (I):Rated current
Resistance
Bulb (II):Rated current
Resistance
When both are connected in series across supply
Total current through supply
This current is less than the rated current of each bulb. So neither bulb will fuse
Short Trick : Since neither bulb will fuse