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Gauss' law for magnetic fields (K.F. Gauss)
The magnetic flux by a closed surface is zero; no magnetic charges present; in differential form,
div B = 0.
Q. What are emissive and absorption spectra? Emission spectrum: When the light emitted straight from a source is examined with a spectrometer the emission spectrum is ob
Cathode rays are : (1)Protons (2)Electrons (3)Neutrons (4)alfa -particles Ans; (2)Electrons
concave grating and rowland''s mounting theory
A spectrometer is required for creating pure spectrum of a source in laboratory and measuring of ? of material of prism and ? of a transparent liquid. It has of three parts: Col
Explain the working of Transformers A transformer often uses a core, which looks like a square donut of iron, to change the voltage applied to the primary coil to a new larger
It appears the intensity will be maximized at that positions where path dissimilarity is an integral multiple of wavelength these points are called as points of constructive inter
Two particles execute S.H.M of same amplitude and frequency ,along the same straight line from same mean position.They cross one another without collision,when going in opposite di
Explain Antenna. Write a short note or Antenna. Name two parts of antenna.
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) Momentum but not energy b) Neither momentu
why soft iron is used in earphone
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