1.ball point pen working principle(a)viscasity(b)gravity
force(c)newtons law(d)boils law
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Answer Posted / chandru
Friends,
Check it again, it is Ball point pen that is referred to in
the question. When you use a Ball point pen upside, then
too it works for a quite a amount of time. This is due to
the viscosity of the ink in the pen tube. The ink gets
drawn towards the tip as the ball rotates. Yes, I agree
that gravity also plays a part but this is only with
respect to pen which have less viscous inks like the Gel
pen or so.
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