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Number 31 please. A thorough explanation would be appreciated.
Yeah, I understand that, but I'm still unsure as to the nature of the change that the second circuit goes through. So when the electromagnet becomes magnetized it attracts both parts ends of the switch, which eventually come in contact with each other?larina said:when switch S is closed the electromagnet(in the relay) becomes magnetised thus allowing the contacts to come closer.
lamp 1 turns ON cuz the current flows through it AND lamp 2 also turns 0N bcuz the current flows through it by the ''relay'' and their is a closed circuit
so both lamps will light....so it is (A).