The resistance of an incandescent lamp is
a)
Greater when switched off
b)
Smaller when switched on
c)
Greater when switched on
d)
The same whether it is switched off or switched on
The resistance of an incandescent lamp is
a)
Greater when switched off
b)
Smaller when switched on
c)
Greater when switched on
d)
The same whether it is switched off or switched on
Question ID - 150252 | SaraNextGen Top Answer
The resistance of an incandescent lamp is
a)
Greater when switched off
b)
Smaller when switched on
c)
Greater when switched on
d)
The same whether it is switched off or switched on
|
The resistance of an incandescent lamp is |
|||
|
a) |
Greater when switched off |
b) |
Smaller when switched on |
|
c) |
Greater when switched on |
d) |
The same whether it is switched off or switched on |
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c)
When lamp is switched on, temperature of filament increases, hence |
;where 
Relaxation time
decreases so 
increases127 votes
Answer Link
127