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The inductors of two LR circuits are placed next to each other, as shown in the figure. The values of the self-inductance of the inductors, resistances, mutual-inductance and applied voltages are specified in the given circuit. After both the switches are closed simultaneously, then total work done by the batteries against the induced in the inductors by the time the currents reach their steady-state values is________mJ.

Answer: 55... View Article

A cubical solid aluminium (bulk modulus = -V (dP/dV) = 70 GPa) block has an edge length of 1m on the surface of the earth. It is kept on the floor of a 5 km deep ocean. Taking the average density of water and the acceleration due to gravity to be 10³ kg m⁻³ and 10 ms⁻², respectively, the change in the edge length of the block in mm is _____.

Answer: 0.23 to 0.24 B = V (dP/dV) Finding the magnitude of the change in the volume:- 70 x 109 = V/dV x 103 x 10 x 5 x 103 7 x 109 = V/dV x... View Article

Two capacitors with capacitance values C₁ = 2000 and plusmn; 10 pF and C₂ = 3000 ± 15 pF are connected in series. The voltage applied across this combination is = 5.00 ± 0.02 V. The percentage error in the calculation of the energy stored in this combination of capacitors is _______.

Answer: 1.30% ET = (1/2) Ceq V2 Assuming (Ceq = C) 1/C = 1/C1 + 1/C2 = 1/2000 + 1/3000 = 5/6000 C = 1200 pF dF/E = dC/C + 2dV/V 1/C... View Article

03 Aug 2021: The Hindu Analysis

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 03rd Aug 2021. Important news and views to boost... View Article

Where did Mahatma Gandhi first try out his new method of peaceful Non-Cooperation Satyagraha?

Mahatma Gandhi first deployed his method of peaceful non-cooperation, which came to be known as Satyagraha, at Champaran in modern-day Bihar.... View Article

Gangotri Glacier [UPSC Environment & Ecology]

The Gangotri glacier is an important topic for both the geography and environment & ecology sections of the UPSC exam. It is the source of... View Article

What is Article 9 in the Indian constitution?

Article 9 of the Indian Constitution states that “Persons voluntarily acquiring citizenship of a foreign State not to be citizens”. That means... View Article

Who comes under IAS Officer?

Positions and designations held by IAS officers in their career are: Cabinet Secretary Additional and Joint Secretary District magistrate... View Article

How to buy Yojana magazine?

One of the most important magazine for UPSC Preparation can be subscribed from the official site [Official website - http://yojana.gov.in/]. The... View Article

When did the non-cooperation campaign of the Khilafat movement begin?

The Khilafat Committee on August 31, 1921, launched a campaign of non-cooperation on August 31, 1921. This led to the official launch of the... View Article

Can anyone become an officer at 21?

Yes, it is possible to become an IAS officer at the age of 21. The only thing necessary is that the prospective candidate must complete his/her... View Article

How many amendments are in the Constitution 2021?

The Indian constitution came into force in 1950. Since then, there are 104 amendments to the constitution of India. Further Reading:... View Article

How much does Yojana magazine cost?

Yojana is one of the important magazines which is helpful for UPSC Preparation. Yojana is a monthly magazine, and it costs in the range of Rs 15... View Article

How many articles are in the Constitution today?

According to legislative.gov.in, as of 9th of December 2020, there are 395 articles, 12 schedules and 22 parts in the Constitution of India.... View Article

What is the last date for UPSC 2021?

The last date to fill UPSC Online application was 24th March, 2021. The Prelims exam for UPSC 2021 is scheduled on 10th October 2021, Mains will... View Article

What is the last date for the UPSC exam?

As per the official UPSC 2021 notification released on March 4, 2021, the online registration for all eligible candidates was completed on March... View Article

How to withdraw UPSC application?

The steps to withdraw UPSC application are: Step 1: Visit the UPSC official website (https://upsc.gov.in/) Step 2: Under “What’s New,” section,... View Article

Has the registration for UPSC Prelims 2021 started?

Yes, the UPSC Prelims registration has started on March 4, 2021. Applications for all eligible candidates were invited by the Union Public... View Article

Difference Between Webpage and Website

When it comes to the internet and browsing, there are a lot of jargons and technical terms doing the rounds, of which webpages and websites also... View Article

Has UPSC 2021 registration started?

Yes, UPSC 2021 registration is now complete. The official notification was released on March 4, 2021, and the registration process to apply for... View Article