identical lamb A,B and C are connected in series across 150V supply. state (a) the voltage across each lamp (b) the effect of lamp C failing. Draw the diagram .
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Exposure to light at night while awake, such as in shift work, may be associated with an increased risk of breast cancer and also cause sleep, gastrointestinal, mood and cardiovascular disorders. However, these effects are due disruption of the natural circadian rhythm, regardless of the type of illumination. More...
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