An inductor may store energy in (a) its electric field (b) its coils (c) its magnetic field (d) both in electric and magnetic ...
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A long horizontal rod has a bead which can slide along its length and initially placed at a distance L from one end A of the rod. The rod is set in angular motion about A with a ...
At an angle of 30° to the magnetic meridian, the apparent dip is 45°. Find the true dip : (1) tan-1 √3 (2) tan-1(cfrac1{sqrt3}) (3) tan-1(cfrac2{sqrt3}) (4) tan-1(cfrac{sqrt3}2)
Draw the graph showing intensity distribution of fringes with phase angle due to diffraction through single slit.
The difference in the number of waves when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is ______ mm. [Refractive index of air = 1.0003, wavelength ...
In a photoelectric experiment, the potential required to stop the ejection of electrons from cathode is 4V. What is the value of maximum kinetic energy of emitted Photoelectrons?
A car is moving in a circular path of radius ( 100 m ) with a speed of ( 20 m / sec ). If its speed is increasing at the rate of ( 3 m / sec ...
The power of a motor pump is 2 kw.How much water per minute the pump can raise to a height of 10m?(GIVEN G=10m/s)
A coil is placed in a magnetic field (vec{B}) as shown below : A current is induced in the coil because (vec{B}) is : (1) Outward and decreasing with time (2) Parallel to ...
(a) Derive an expression for the electric field E due to a dipole of length ‘2a’ at a point distant r from the centre of the dipole on the axial line. (b) Draw ...