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 consume of electro magnetic vagabonds. OR Narrate maxwell’s sh atomic number 18 towards discovery of electromagnetic waves. ▪ The great nineteenth century scientist Maxwell presented the laws of galvanisingity and magnetism, worry the Gauss’s law, Ampere’s law, Faraday’s law and physical composition of closed loops by the magnetic field of battle lines in the exercise of differential equations. This led to the image of the electromagnetic waves. ▪ While examining the accord betwixt the differential equations for the electric and magnetic fields, he institute that some end top dog was missing. Hence, Maxwell postulated the existence of a term which he called the deracination current. ▪ When the differential equations for electric field E and magnetic field B, ca lled Maxwell’s equations, were written, they engaged wave equations. ▪ He in addition showed that the velocity of these waves is equal to the velocity of hoy in vacuum. This constituted The fact that light waves atomic number 18 zip fastener but waves associated with electric and magnetic field i.e. light waves are electromagnetic waves. It should be noted that Maxwell’s this flirt was numerical only.

Q. 2 Describe cycles/second’s audition for producting electromagnetic waves in laboratory. ▪ Figure demonstrates simple arrangement of Hertz experiment . ▪ Q1 and Q2 are two metalli! c spheres. The two spheres are committed by means of metallic rods M and N and a electric arc gap S is formed between two rods. ▪ liberation gouge be produced in waiver gap by connecting the rods with an induction coil. ( A large p.d. flock 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 adequate essay, order it on our website: OrderCustomPaper.com

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