Question Detail

PHY 102 Electrostatics: Electric Charge and Coulomb's Law Objective Question
Take CBT

Question

In a photocopy machine, how is the dry toner (ink) attracted to the drum?
Options
A Through magnetic attraction of the iron in the ink.
B By spraying the ink onto a neutral surface with high pressure.
C Negatively charged toner particles are attracted to positive charges on the drum's surface.
Correct Answer
D The ink is melted directly onto the drum using thermal conduction.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Photocopy machines use electrostatics: a drum is patterned with positive charge, which attracts negatively charged toner particles to form the image.

Hint

Opposites attract in the printing process.

Question Info

Course: PHY 102
Topic: Electrostatics: Electric Charge and Coulomb's Law
Type: Objective
Difficulty: Not specified
Question 127 of 1819
Previous Course Details Next