The Van de Graaff generator is not based on

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(B) The Van de Graaff generator operates on two primary principles: $1$. The phenomenon of Corona discharge at sharp points,which allows for the trans

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the application of electric field and magnetic field which are perpendicular to each other.

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(B) The Van de Graaff generator operates on two primary principles: $1$. The phenomenon of Corona discharge at sharp points,which allows for the transfer of charge to a moving belt. $2$. The property that charge given to a hollow conductor is transferred to its outer surface,and the potential of an isolated conductor increases as more charge is supplied to it. Option $B$ describes the principle of a cyclotron,where electric and magnetic fields are used to accelerate charged particles. Therefore,the Van de Graaff generator is not based on the application of perpendicular electric and magnetic fields.

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