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- Dictionaryde·duce/dəˈdo͞os/
verb
- 1. arrive at (a fact or a conclusion) by reasoning; draw as a logical conclusion: "little can be safely deduced from these figures"
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Deduce Ohm/s law using the concept of drift velocity. OR Define the term 'drift velocity' of charge carriers in a conductor.Obtain the expression for the current density in terms of relaxation time. OR Define relaxation time of the free electrons drifting in a conductor.How is it related to the drift velocity of free electrons?
Deduce its relation with coefficient of limiting friction. Assertion :Angle of repose is equal to angle of limiting friction. Reason: When the body is just about to move, the force of friction in this stage is called as limiting friction. The coefficient of static friction between a block of mass m and an incline is μs = 0.3.
(a) Define the term 'conductivity' of a metallic wire. Write its SI unit. (b) Using the concept of free electrons in a conductor, derive the expression for the conductivity of a wire in terms of number density and relaxation time. Hence obtain the relation between current density and the applied electric field E.
(a) Draw the labelled ray diagram for the formation of image by a compound microscope. Derive an expression for its total magnification (or magnifying power), when the final image is formed at the near point.
An electric dipole is a separation of positive and negative charges. The electric dipole moment is the product of the magnitude of the charge and the distance between the centres of positive and negative charges. μ = Q×r. Here, Q is charge and r is the distance. Was this answer helpful?
Define gravitational potential energy. Derive expression for gravitational potential in the gravitational field of earth at distance r from the centre of the earth. = − 2 G M m r
Angle of repose is defined as the angle that an inclined plane makes with the horizontal when a body placed on it just starts sliding. Was this answer helpful? Define angle of repose. Deduce its relation with coefficient of limiting friction.
define coefficient of static friciton ans the angle of friction. Define angle of repose. Deduce its relation with coefficient of limiting friction.
(a) Define electric dipole moment. Is it a scalar or a vector? Derive the expression for the electric field of a dipole at a point on the equatorial plane of the dipole. (b) Draw the equipotential surface due to an electric dipole. Locate the points where the potential due to the dipole is zero.
(a) Derive an expression for the electric field E due to a dipole of length '2a' at a point at a distance r from the centre of a dipole on the axial line.
