please answer electricity and magnetism gcse question:

Question

anonymous · Answer

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anonymous · Answer

in 1st Q ans is C as mag. field MUST pass through the nail to magnetise it by aligning its particles(domains, rather) to provide net magnetism in 1 direction...(based on fact that solenoid has mag. field only INSIDE it)

anonymous · Answer

but it says 'switch open' so electricity doesn't pass through the coil...

anonymous · Answer

im not focussing on values.. but the general ans is that being in parallel combination both resistors' potential diff. across their respective ends is same. and in parallel resistors follow 1/R(net)=1/R1 + 1/R2...does this help???

anonymous · Answer

sry the 2nd ans is of 2nd Q

anonymous · Answer

hmm.. does it say that magnet is being pushed or just kept? if 2nd case then same reason and ans is A...

anonymous · Answer

i thought'bout it..my 1st ans is wrong...take no note of it.