DC Circuit MCQ Job Interview Exam Higher Study Admission Questions Answers part5
41. Three equal resistors connected in series across a source of e.m.f together dissipate 10 W. What would be the power dissipated if the same resistors are connected in parallel across the same source of e.m.f? 90W
42.In a circuit, two cells of 1.5 V and 2 V e.m.f. having internal resistances of 1Ω and 2 Ω respectively are connected in parallel so as to send current in the same direction through an external resistance of 5 Ω. The circuit current is 5/17 A.
43. A standard 4o W tube light is in parallel with a room heater and both are connected to main supply line. What will happen when light is switched off? The heater output will remain same.
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