The dielectric strength of nitrogen is _________.

This question was previously asked in
MPPGCL JE Electrical 01 June 2024 Shift 1 Official Paper
View all MPPGCL Junior Engineer Papers >
  1. 1 to 2 V/mm
  2. 6 to 7 V/mm
  3. 7 to 8 V/mm
  4. 3 to 5 V/mm

Answer (Detailed Solution Below)

Option 4 : 3 to 5 V/mm
Free
MPPGCL JE Electrical Fundamentals Mock Test
1 K Users
20 Questions 20 Marks 24 Mins

Detailed Solution

Download Solution PDF

Explanation:

Dielectric Strength of Nitrogen

Definition: Dielectric strength is defined as the maximum electric field that a material can withstand without experiencing failure of its insulating properties. In simpler terms, it is the highest voltage that can be applied across a material without causing it to conduct electricity (breakdown). For gases, such as nitrogen, this value is typically given in volts per millimeter (V/mm).

Dielectric Strength of Nitrogen: The dielectric strength of nitrogen is an important parameter in various applications, especially in electrical and electronic engineering. Nitrogen is commonly used as an insulating gas in high-voltage equipment, such as transformers and circuit breakers. It is also used in the semiconductor industry for creating inert atmospheres during manufacturing processes.

The dielectric strength of nitrogen is approximately 3 to 5 V/mm. This means that nitrogen can withstand an electric field of 3 to 5 volts per millimeter before it breaks down and becomes conductive.

Correct Option Analysis:

The correct option is:

Option 4: 3 to 5 V/mm

This option correctly states the dielectric strength of nitrogen. As mentioned, the dielectric strength of nitrogen ranges from 3 to 5 V/mm, making it a suitable insulating material for various high-voltage applications.

Additional Information

To further understand the analysis, let’s evaluate the other options:

Option 1: 1 to 2 V/mm

This option is incorrect. The dielectric strength of nitrogen is higher than this range. A value of 1 to 2 V/mm is significantly lower than the actual dielectric strength of nitrogen, which means nitrogen would not be a reliable insulating material if this were the case.

Option 2: 6 to 7 V/mm

This option is also incorrect. While nitrogen has good insulating properties, its dielectric strength does not typically reach as high as 6 to 7 V/mm. This value is higher than the actual dielectric strength of nitrogen, which could lead to overestimating its insulating capabilities.

Option 3: 7 to 8 V/mm

Similar to option 2, this range is too high. The dielectric strength of nitrogen does not reach 7 to 8 V/mm under normal conditions. Using this value could result in incorrect assumptions about the performance of nitrogen as an insulating gas.

Conclusion:

Understanding the dielectric strength of insulating materials is crucial for designing and maintaining high-voltage equipment. The dielectric strength of nitrogen, at 3 to 5 V/mm, makes it a reliable and effective insulating gas for various applications. By correctly identifying this parameter, engineers can ensure the safety and efficiency of electrical systems that utilize nitrogen as an insulator.

Latest MPPGCL Junior Engineer Updates

Last updated on Jul 18, 2025

-> MPPGCL Junior Engineer Notification 2025 has been released for various fields of post (Advt No. 3233).

-> MPPGCL has announced a total of 90 vacancies for Civil, Mechanical, Electrical, and Electronics Engineering (Junior Engineer).

->  Interested candidates can submit their online application form, from 23rd July to 21st August 2025. 

-> MPPGCL Junior Engineer result PDF has been released at the offiical website.

-> The MPPGCL Junior Engineer Exam Date has been announced.

-> The MPPGCL Junior Engineer Notification was released for 284 vacancies.

-> The selection process includes a Computer Based Test and Document Verification.

-> Candidates can check the MPPGCL JE Previous Year Papers which helps to understand the difficulty level of the exam.

More Network Elements Questions

Get Free Access Now
Hot Links: teen patti apk teen patti master teen patti wealth online teen patti real money teen patti gold old version