In a domestic circuit, electrical appliances and lamps are arranged in parallel across the mains so as to enable the

A. same current to flow through the electrical appliances and the lamps
B. maximum energy to be consumed at least cost
C. same fuse to be used for the electrical appliances and the lamps
D. voltage across the appliances not to be affected when the lamps are switched on and off  
E. heat losses to be minimized

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Correct Answer: D