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Subjects
Science CBSE
Class 7
Electric current and its effects
Circuits, heating and magnetic effects
5.
Incandescent electric bulbs
Exercise condition:
5
m.
State true or false
:
1
.
We can touch an electric bulb when it is lighted.
-
False
True
2
.
Incandescent electric bulbs are better than the CFLs and the fluorescent tube-lights.
-
True
False
3
.
The amount of heat produced in the element depends only on the material of the coil.
-
True
False
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