You are right about it decreasing gravitational force but remember that when the gravitational force is lessened it means the pointer is not being pulled down as much so the pointer will actually move up
Yes it does this graph may look familiar and represents the force on one side of the coil
Regarding the b6 cut off:
yeah i find it weird how 78 would go to 90 when ext 2 maths has similar aligning some years.
Further im not sure how low itll be this year although the general consensus is the...
Im not too sure myself but i guess they would be a reasonable indication of what you should have written although they would probably accept a variety of answers for certain questions.
Nah I dont think they are lowballs the exams are out of much less too which probably contributes to the lower percentages. Last years exam was much easier and still mid 70s went to an e4