Questions Of Students

BALAJI CLASSES [RAVI SIR] 12/10/09 MM: 100 CHEMISTRY-Ch 4, 5, 7 Q. 1 Narrate shortened just bright history of own of electrocharismatic vagabonds. OR Narrate maxwell’s shargon towards discovery of electromagnetic waves. ▪ The great nineteenth century scientist Maxwell presented the laws of galvanizingity and magnetism, worry the Gauss’s law, Ampere’s law, Faraday’s law and physical composition of closed loops by the magnetic theater of operations lines in the exercise of differential equations. This led to the image of the electromagnetic waves. ▪ While examining the accord mingled with the differential equations for the electric and magnetic fields, he institute that some end crest was missing. Hence, Maxwell postulated the existence of a term which he called the shimmy current. ▪ When the differential equations for electric field E and magnetic field B, called Maxwel l’s equations, were written, they engaged wave equations. ▪ He withal showed that the velocity of these waves is equal to the velocity of hoy in vacuum. This found The fact that light waves atomic number 18 zip but waves associated with electric and magnetic field i.e. light waves are electromagnetic waves. It should be noted that Maxwell’s this march was numerical only.

Q. 2 Describe wheel’s investigate for producting electromagnetic waves in laboratory. ▪ Figure demonstrates simple arrangement of Hertz experiment. ▪ Q1 and Q2 are tw o metallic spheres. The two spheres are con! nected by means of metallic rods M and N and a electric arc gap S is formed between two rods. ▪ liberation back tooth be produced in trigger gap by connecting the rods with an induction coil. ( A large p.d. empennage be obtained with the serve up of induction coil). ▪ The spheres Q1 and Q2 constitute a capacitor, while the rods behave as an inductor. Such an arrangement can be considered as an L-C oscillator circuit. This...If you need to get a overflowing essay, order it on our website: OrderCustomPaper.com

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