Physics-
General
Easy
Question
Three concentric metallic spheres A, B and C have radii a,b and c 
and surface charge densities on them are 
and s respectively The values of 
will be
The correct answer is:
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Assume three concentric conducting spheres where charge 
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Assume three concentric conducting spheres where charge have been placed on inner and outer sphere where as middle sphere has been earthed Find the charge on the outer surface of middle spherical conductor
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Shown below is a distribution of charges The flux of electric field due to these charges through the surface S is
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Electric charge is uniformly distributed along a long straight wire of radius 1 mm The charge per cm length of the wires is Q coulomb Another cylindrical surface of radius 50 cm and length 1 m symmetrically encloses the wire as shown in the figure The total electric flux passing through the cylindrical surface is
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Two parallel plane sheets 1 and 2 carry uniform charge densities 
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)
Two parallel plane sheets 1 and 2 carry uniform charge densities and as shown in fig electric field in the region marked II is ( )
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A thin conducting ring of radius R is given a charge +Q The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E The electric field at the centre due to the charge on the part ACDB of the ring is
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If a hemispherical body is placed in a uniform electric field E then the flux linked with the curved surface is
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A particle executes harmonic motion with an angular velocity and maximum acceleration of 
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A particle executes harmonic motion with an angular velocity and maximum acceleration of and respectively. The amplitude of oscillation is
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The amplitude of damped oscillator becomes 
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A simple pendulum of length has a bob of mass with a charge on it. A vertical sheet of change, with surface charge density passes through the point of suspension. At equilibrium, the spring makes an angle 
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A spring with 10 coils has spring constant K It is exactly cut into two halves, then each of these new springs will have a spring constant
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When the amplitude of a body executing SHM become twice what happens?
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The displacement-time graph of a particle executing SHM is as shown in the figure.
The corresponding force-time graph of the particle is
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The corresponding force-time graph of the particle is
physics-General
