A particle having a charge 10mC is held fixed on a horizontal surface. A block of mass 80g and having charge stays in equilibrium on the surface at a distance of 3 cm from the first charge. The coefficient of friction between tge surface and the block is 0.5. Find the range within which the charge on the block may lie.
a)-4×10^-9C to 4×10^-9C
b)-2×10^-9C to 2×10^-9C
c)-4×10^-19C to 4×10^-19C
d)-2×10^-19C to 2×10^-19C
SOLUTION:-
a)-4×10^-9C to 4×10^-9C
b)-2×10^-9C to 2×10^-9C
c)-4×10^-19C to 4×10^-19C
d)-2×10^-19C to 2×10^-19C
SOLUTION:-
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