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any one need help with additional physics for the exam

any one need help with additional physics for the exam ?
Me! I've been doing past papers and I'm struggling so much :s-smilie:
Can someone explain to me the differences and actions of a RCCB in comparison to a fuse? I can give anyone a hand with the Life Cycle of stars in return... Haha :colondollar:
Reply 3
RCCBs work much faster than fuses do. They detect a difference in the current between the live and neutral wires.
I think their will be a question on the life cycle of stars
Reply 4
on what topic ?

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