Charging by _ occurs when electrons are transferred from one object to another by direct contact
A. Conduction
B. Induction
C. Reduction
D. Friction
The Correct Answer and Explanation is :
The correct answer is A. Conduction.
Explanation:
Charging by conduction is a process that occurs when two objects with different electrical charges come into direct contact with each other. This direct contact allows electrons to move from one object to the other, resulting in a transfer of charge. When a charged object touches a neutral object, the excess electrons from the charged object will flow into the neutral object (if the charged object is negatively charged) or from the neutral object to the charged object (if the charged object is positively charged). This movement of electrons occurs until both objects reach the same electric potential, leading to a balanced charge distribution.
For example, if a negatively charged rod comes into contact with a neutral metal sphere, electrons will flow from the rod into the sphere. After the contact, both the rod and the sphere will have a net negative charge, though the sphere may not be as negatively charged as the rod, depending on the amount of charge transferred.
This process can be understood in terms of conductors and insulators. Conductors, such as metals, allow electrons to move freely, facilitating the transfer of charge. Insulators, on the other hand, do not allow electron flow easily, making conduction less effective.
Conduction is one of the primary ways static electricity is generated and transferred in everyday situations, such as when you touch a doorknob after walking on a carpet. The charge transferred through conduction can result in phenomena like static shocks, which occur when there is a sudden discharge of electricity. Understanding conduction is fundamental in electrical engineering and physics, as it lays the groundwork for concepts such as electrical circuits and the behavior of materials in response to electric fields.