Fibre optics, Fibre optics: Light travels in straight lines, even thoug...

Fibre optics: Light travels in straight lines, even though lenses and mirrors can deflect it, light still travels in a straight line between optical devices. This is fine for

Electric field intensity, If small test charge is taken as positive than w...

If small test charge is taken as positive than why measured value of electric intensity be somewhat less than the actual value of elctric intensity and vica versa

Magnitude and direction of the force on the dipole, In class, we learned th...

In class, we learned that the force on a dipole can be written as F = (p.Δ)E This force can be used to sort particles with no net charge but with a dipole moment in a method cal

State gauss law, State Gauss's law. The total flux of the electric fie...

State Gauss's law. The total flux of the electric field E over whichever closed surface is equal to 1/ε o times the net charge enclosed by the surface. That is φ = q / ε

Write any three medical applications of laser, Q. Write any three medical a...

Q. Write any three medical applications of laser. Medical applications (i) In medicine micro surgery has befall possible due to narrow angular spread of the laser beam.

Determine the efficiency of the transformer, A 400kVA transformer has a pri...

A 400kVA transformer has a primary winding resistance of 0.5Ω and a secondary winding resistance of 0.001Ω . The iron loss is 2.5kW and the primary and secondary voltages are

Magnetism, when a soft iron piece is buried under the surface of earth in t...

when a soft iron piece is buried under the surface of earth in the north south direction why the iron piece show properties of a magnet

Astrophysics, what is astrophysics?

what is astrophysics?

Forces and nature,

Explain friction force (ffrict), Explain Friction Force (Ffrict) Force ...

Explain Friction Force (Ffrict) Force exerted by a surface as an object moves across it or makes an effort to move across it. There are 2 parts of friction force - sliding and