Eight charged drops of water, each of radius 1 m and having a charge of `10^(-10)` coulomb, combine to form a bigger drop. Determine the potential of the bigger drop.
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Several spherical drops of a liquid of radius `r` coalesce to form a single drop of radius `R`. If `T` is surface tension and `V` is volume under cons
Correct Answer - B Energy released `=4piTR^(3)[(1)/(r )-(1)/(R )] = 3((4)/(3)piR^(3)) T[(1)/(r )-(1)/(R )] = 3VT[(1)/(r ) - (1)/(R )]`
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The clouds consist of charged particles of water dispersed in air. Some of them are +vely charged, other are -vely charged. When +vely charged clouds
Correct Answer - A `AgNO_(3)("excess")+KI rarr Agl overset(+AgNO_(3) ("remaining"))(rarr)AgI//Ag^(+)`
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A uniformly charged sphere has radius R and charge Q on it. A negatively charged particle having mass m and charge – q shoots out of the surface of th
Correct Answer - Yes, `V_(0)` depends on q. `V_(0)=sqrt((2KQq)/(mR))`
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Consider a uniformly charged spherical shell of radius R having charge Q charge Q can be through to be made up of number of point charges `q_(1),q_(2)
Correct Answer - (a). `(Q^(2))/(8 pi in_(0)R)` (b). Same as in (a)
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64 droplets of water of equal size unite from a large drop. If each dropet had equal and similar charge, how would the potential energy and capacitanc
Correct Answer - Potential will increase 16 times capacitance 4 times and energy 16 times
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A small brass having a positive charge of `1.7xx10^(-8)` C is made to touch another sphere of the same radius having a negative charge of `3.0xx10^(-9
Correct Answer - `1.1 xx 10^(-5)N;0.367 xx 10 ^(-5)N`
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A uniformly charged sphere carries a total charge of `2 pi xx10^(-12)` C. Its radius is 5 cm and is placed in vacuum. Determine its surface charge den
Correct Answer - `2xx 10^(-10)Cm ^(2)`
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Two equal drops of water with the same and similar charge coalesce to form a large single drop. Show how the surface density, capacity, potential and
Correct Answer - `sigma_(1): sigma_(2)= 2^(2//3):2`
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`N` drops of mercury of equal radii and possessing equal charges combine to from a big drop. Compare the charge, capacitance and potential of bigger d
Correct Answer - `N,N^(1//3),N^(2//3)`
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Water drops are falling from a tip at regular time intervals. When the fifth drop is near to fall from tap the first drop is at ground. If the top is
Correct Answer - (i)`(7)/(16)H` (ii)`(5)/(16)H` (iii)`sqrt((Gh)/(2))`
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