Question

Van de Graff generator is a machine which generates​

Answer 1

Answer:

A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials. It produces very high voltage direct current (DC) electricity at low current levels.

Answer 2

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vann-de-Graff generator is a machine which generates ?

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→ I am using vann-de-Graff Generator to generate high potential difference (details given below).

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$\Large\bold\star\underline{\underline\textbf{Vant-de-Graff Generator\:}}$

→ It is a device which is used to produce very high potential difference.

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$\Large\bold\star\underline{\underline\textbf{Principle\:}}$

→ Electric discharges take place radially at the pointed ends of a conductor.

→ The charge given to a conductor resides on the outer surface of it.

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$\Large\bold\star\underline{\underline\textbf{Construction\:}}$

→ Van-de-Graaff generator consists of large spherical shell mounted on insulated stand. An insulated belt is made to rotate on two pulleys P1 and P2 , .

» A metal comb C1 is connected to high voltage rectifier (HVR) .

» Another metal comb C, is connected to spherical shell.

» The whole arrangement is enclosed inside and earthed steel tank. It prevents the leakage of charge from shel.

$\Large\bold\star\underline{\underline\textbf{Working\:}}$

→ The comb C1 sprays positive charge to the belt. This positive charge moves up towards C2 due to the rotation of the belt. The negative charge appears on C2 due to induction , an equal positive charge appears on the outer surface of shell.

» As the belt is rotating continuously , show the charge on the shell S increase continuously. In this way the potential of the cell is to high potential.

Hope it helped u.

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