MB Networks

  Electrostatic Potential and Capacitance Class 12 Physics MCQs Pdf 1. Which of the following statement is true? (a) Electrostatic force is a conservative force. (b) Potential at a point is the work done per unit charge in bringing a charge from any point to infinity. (c) Electrostatic force is non-conservative (d) Potential is the productof charge and work. Answer:a 2. 1 volt is equivalent to Answer:c 3. The work done in bringing a unit positive charge from infinite distance to a point at distance x from a positive charge Q is W. Then the potential at that point is Answer: b Answer: b 4. Consider a uniform electric field in the z-direction. The potential is a constant (a) for any x for a given z (b) for any y for a given z (c) on the x-y plane for a given z (d) all of these Answer:d 5. Equipotential surfaces (a) are closer in regions of large electric fields compared to regions of lower electric fields. (b) will be more crowded near sharp edges of a conductor. (c) will always be e...

  Ashraf Ghani's brother might have pledged support to Taliban, claims report Hashmat Ghani is the chief of the Grand Council of Kuchis and is also the chairman of Kabul-based The Ghani Group. His business empire is spread in the United Arab Emirates, where Ashraf Ghani took refuge after leaving Kabul. A purported video of former Afghanistan President Ashraf Ghani's brother Hashmat Ghani pledging support to the Taliban has surfaced. Reports said the video has been released by Taliban religious scholar Mufti Mahmood Zakir. The purported video shows that Taliban leader Khalil-ur-Rehman was present when Hashmat Ghani reportedly joined the Taliban. The video has not been independently verified by HT. Hashmat Ghani is the chief of the Grand Council of Kuchis and is also the chairman of Kabul-based The Ghani Group. His business empire is spread in the United Arab Emirates, where Ashraf Ghani took refuge after leaving Kabul. Hashmat Ghani is also believed to be a vice president of an ...

The world billioner warenbuffet donating99℅of his wealth .   Buffett, who turns 91 on Aug. 30, 2021, is a billionaire at a time when outrage over the excesses of extreme wealth is growing in tandem with billionaires' fortunes. But based on what I learned about him while becoming a scholar of finance and a portfolio manager, I see Buffett as a model for his ultrarich peers. He has given half of his vast fortune to charity and plans to unload the most of the rest during his lifetime or upon his death. Buffett also largely lives a modest lifestyle by billionaire standards; he still resides in the spacious house he bought six decades ago. The 'Buffett Rule' Buffett freely admits that he has benefited from a system that lets billionaires pay very low tax bills, partly because it taxes income instead of wealth. He has famously lamented paying a lower tax rate than his secretary. For years he advocated for the so-called "Buffett Rule," a minimum 30% tax on those making m...

Tejas Mark II is likely to be rolled out next year. This will a more powerful  version of the indigenous Tejas multi-role combat jet featuring a much powerful engine, greater load-carrying capability and next-generation electronic warfare system. Tejas Mark II is likely to be rolled out next year. This will a more potent version of the indigenous Tejas multi-role combat jet featuring a much powerful engine, greater load-carrying capability and next-generation electronic warfare system. Its first high-speed trials will start in 2023, according to Chairman and Managing Director of Hindustan Aeronautics Ltd R Madhavan. The structural package and related work, which will have an array of superior avionics, was progressing well, he said. The production of the high-performance jet is likely to start around 2025. The aircraft is a potent platform for air combat and offensive air support with reconnaissance and anti-ship operations as its secondary roles. The Tejas Mk-1A will be equip...

  People like Jeff Bezos, Elon Musk, Warren Buffet, Mark Zukerberg, Steve Jobs, Bill Gates, and Ratan Tata are some of these billionaires who have really worked hard to make their way to top. Let,s talk about there first jobs of these business tycoons.   Elon Musk : Musk is quite popular among people for his Tesla designs and tweets. The chief executive of Tesla and SpaceX got his first job as a Software Engineer in 1983. He used to sell computer games and take home $500, that is, Rs. 37,405 per month. He grew up in South Africa and later immigrated to Canada at the age of 17 and started working as a software engineer also he is one of the richest person in the world Jeff Bezos  : The owner of Amazon and currently the world’s first richest person, Bezos landed his first job as a fry at McDonald’s. He was just 16 years old and earned $2.69, that is Rs 201 per hour. Warren Buffet:  The American business tycoon, Warren Buffett worked as a newspaper delivery guy in ...