Question
An electric heater is rated 220 V, 550 W. What does this statement mean?
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Name the three radiations.
The diagram in the figure shows a uniform metre rule weighing 100 gf, pivoted as its centre O. two weight 150 gf and 250 gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20
cm .Calculate
The total anticlockwise moment about o.
$\ce {^A_Z X^* -> ^A_ZX + γ}$