Why is the electrical conductivity of metals very high while that of plastics is very low?

Metals: Metallic bonding leaves valence electrons delocalised as an “electron sea” (about 10²⁸–10²⁹ electrons/m³). In band theory the conduction band is partly filled or overlaps the valence band, so there is no energy gap. Electrons move freely under a small field. Conductivity is about 10⁶–10⁸ S/m.

Plastics: Atoms are held by strong covalent bonds, so all electrons are localised. The

• Process States: A process cycles through: New (created) → Ready (waiting in memory) → Running (executing instructions) → Waiting/Blocked (waiting for an event/IO) → Terminated (finished execution).
• PCB Definition: A dedicated kernel data structure containing all information about a specific process.
• 5 Essential PCB Fields:
  1. Process State: Current condition (Ready, Running, etc.).
  2. Program Counter (PC): Address of the next instruction to

1. Meaning of OD Organizational Development (OD) is a planned process of improving an organization's performance through changes in employee behaviour, teamwork, and communication. 2. Nature ⦿Planned: Changes are planned properly. ⦿Continuous: It is an ongoing process. ⦿People-oriented: Focuses on employees. ⦿Change-oriented: Helps the organization adapt to changes. ⦿Long-term: Focuses on lasting improvement. 3. Basic Assumptions ⦿Employees want to learn and grow. ⦿Trust and teamwork

Q1. Define mental health. Explain its key features.

The WHO defines mental health as a state of well-being in which a person realizes their own abilities, copes with the normal stresses of life, works productively and contributes to their community. It is more than the absence of disease.

Key features:

• Emotional well-being: the ability to experience, express and regulate feelings.
• Psychological well-being: self-acceptance, purpose in life, autonomy, positive relationships and personal growth.
• Social

1. The process by which individuals create, manage, and curate their digital persona on social platforms is called online self-presentation.
2. The concept of altering or narrowing one's perception of others through filters and selective sharing in online spaces is known as "Looking through a Lens."
3. Ingratiation is a self-presentation strategy where an individual uses flattery or favors to create a positive impression.
4. The factors

• Root Node: The topmost node of the tree with no parent.
• Leaf Node: A node with no children (degree 0).
• Internal Node: A node containing at least one child.
• Subtree: A tree structure formed by a child node and its descendants.

• Full Binary Tree:

Objective of India-ASEAN FTA?

==Introduction: India-ASEAN Free Trade Agreement was signed on 13th August 2009 in Bangkok and came into force on 1st January 2010. It is India's one of the most important FTAs.

Objectives:

1. To Increase Bilateral Trade: To increase trade from $80 billion to $200 billion.

2. Elimination of Tariffs: To reduce duties on 80% of goods.

3. Market Access: To create large free market of 1.8 billion people.

4. Investment Promotion: To promote mutual investment through CECA.