Recently Active Physics Questions

an electric dipole is kept on the axis of a uniformly charged ring at distance of r/√2 frm the centre of the ring .the direction of dipole moment is along the axis dipole moment is p charge of ring is q n radius is r force ...

A skier moves with a constant speed of 6 m/s along a parabolic path y = x2/20 . Find the acceleration when he is at (10,5) ...

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in a stationary wave on a string,is the elastic potential energy max at the nodes?(thats what i thought till now until i saw fiitjee's solutions to a paper) ...

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a block of mass m moving on a circular path of radius R with constant tangettial acceleration at,the surface is rough(coefficient of friction is μ). Find the speed of the block at which it will leave the circular path a)√Π...

A student performs an experiment for determination of g= \frac{4\pi^2l}{T^2} , l≈1 m, he commits an error of Δl. For T he takes the time of n oscillations with a astop watch of least count ΔT and hes a human error of 0.1 ...

force Fvector=yi +xj acts upon a particle of mass m here how we can check that whether origin is unstable or stable equilibrium ...

a particle is observed from an inertial frame of reference and it is found to move on circular path of radius r with a uniform speed v The centrifugal force on the particle is ?? a ball of mass M strikes another ball of mass ...

1) a drop of water of mass 0.2 g is placed between two glass plates The distance between them is 0.01 cm Find the force of attraction between the plates if surface tension of water =0.07N/m-1 2)If p is the pressure of a gas i ...

Pl. try Q 94 n 95 *Image* ...

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*Image* the coeff of friction between the wedge of mass M and block of mass m is u.find the magnitude of force (F) reqiured to keep the block stationary wrt wedge.plz expln.... ...

HEAT-16 *Image* ELECTROMAG.41 *Image* ...

A tiny electric dipole of dipole moment p is placed at a distance r from an infinitely long wire , with it's p normal to the wire. If the linear charge density of the wire is λ , the electrostatic force acting on the dipole ...

pls WORK OUT these sums for me 1)If a1 and a2 are two non-collinear unit vectors and if (Modulus)[a1+a2]= 3 ,then the value of (a1-a2).(2a1+a2)is (a)2 (b)3/2 (c)1/2 (d)1 2)A particle moves on a given line with a constant spee ...

plzzz explain me the answer of Q30 and Q31 from SHM in HC Verma ...

1) A wheel with a radius 45 cm rolls without slipping etc. At time t1 a painted pt p is at the bottom of the wheel in contact with the floor. At a time t2, The wheel has rolled thru 1 half revolution.What are a)Magnitude b)an ...

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Q 17 solve kario!!! *Image* ...

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A non conducting ring of radius r has charge Q. A magnetic field perpendicular to the plane of the ring changes at the rate of dB/dt. The torque experienced by the ring is? ...

*Image* the conductor XY has negligible resistance. a) current will flow thru XY if ε1/R1 ≠ε2/R2 B) current will flow thru XY if ε1=ε2 C) current will never flow thru XY . d) current will always flow watever be the cond ...

the fuse wire has high or low resistance ...

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a cubical block is floating inside a bath. The temp of the system is increased by a small temp T. It was found that the depth of the submerged portion did not change. find relation between coeff of linear expansion α of cube ...

two long parallel wires are at a distance 2d apart. they carry steady current flowing out of the plane of the paper, as shown. the variation of magnetic field B along the line XX' is given by *Image* *Image* which one do u th ...

an elliptical cavity is carved within a perfect conductor A positive charge q is placed at the centre of cavity The points A and B are on the cavity surface (a nearer to q) then a)electric field near A in the cavity =electric ...

two conducting spheres of radius r and 2r at very large separation . Each sphere is having charge Q These spheres are connected with a conducting wire of resistance R Then the current flowing in the wire at t=2 micro sec. is ...