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These days, impact printing such as ...

These days, impact printing such as that of a standard type writer has been replaced by high quality , high speed ink-jet printing . Its basic lies in building up of alphabets or figures by a jet of tiny liquid drops . Th negatively charged drops are guided by passing them between two conducing plates. A signal from a computer determines the charge on the drop. An electric field guides the drop to a particular position on the paper. About 100 tiny droplets are needed to form a single character.
The advantage of ink-jet printing over standard impact printing is

A

Its high-speed

B

Its low cost

C

Simplicity of design

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • These days, impact printing such as that of a standard type writer has been replaced by high quality , high speed ink-jet printing . Its basic lies in building up of alphabets or figures by a jet of tiny liquid drops . Th negatively charged drops are guided by passing them between two conducing plates. A signal from a computer determines the charge on the drop. An electric field guides the drop to a particular position on the paper. About 100 tiny droplets are needed to form a single character. Which of the following best represents the principle involved in ink-jet printing ?

    A
    Opposite charges attract each other
    B
    Path of a moving charge in uniform electric field is parabola
    C
    When two charged drop combine, energy is released
    D
    Electrostatic induction.

  • These days, impact printing such as that of a standard type writer has been replaced by high quality , high speed ink-jet printing . Its basic lies in building up of alphabets or figures by a jet of tiny liquid drops . Th negatively charged drops are guided by passing them between two conducing plates. A signal from a computer determines the charge on the drop. An electric field guides the drop to a particular position on the paper. About 100 tiny droplets are needed to form a single character. Different ink-drops land on the paper following different paths, because

    A
    They are subjected to different electric fields
    B
    They have different charges
    C
    They are different in size
    D
    They have different potential energies

  • Lean meant' is considered to be high quality because it has

    A
    lesser but easily digestible protein
    B
    lesser lipid content
    C
    more fat that makes the meat softer
    D
    longer table life due to lesser chances of infection.

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