UPSC/GK

  What is Magnetic Material ? The materials which get magnetized in the presence of magnetic field is called  Magnetic materials. Non Magnetic materials get magnetized in presence of magnetic field but they exhibit weak magnetization. Classification of Magnetic Materials On the basis of magnetic behaviour, material may be classified as Diamagnetic Paramagnetic Ferromagnetic Diamagnetic materials It is a weak form of magnetism that is non-persistent and persists only when an external field is applied. Due to an applied magnetic field a change is occur in the orbital motor of electrons, due to this change a magnetic moment is induced in this materials. The magnitude of induced magnetic moment is extremely small and in a direction opposite to that of applied magnetic field. Diamagnetic materials are repelled by magnetic field. Some of the materials that exhibit diamagnetism are  Cu, Au, Ge, Si, Diamond, Al 2 O 3 , NaCl  etc. Paramagnetic Materials When Paramagnetic Mate...

  Applications of DC Generators Separately-excited  DC generator are rarely used in practical applications because of the additional expenses to be limit for the separate excitation supply. DC shunt  generator can be used for general purpose  lighting and low-voltage DC supply system. DC series  generators do not find much application because of their rising voltage characteristics at higher loads, except these are sometimes  used as boosters to compensate excessive voltage drops  that can take place in a long DC feeder. Flat compound  DC generators are most commonly  used for low-voltage DC distribution systems.  Flat compound generators can also be  used for charging of batteries  since they can give fairly constant output terminal voltage, irrespective of load current. Over-compound  type DC generators can be  used for lighting and general power supply applications  because over-compounding can compensate...

  Hopkinson's Method  In this method, two identical DC machines are both mechanically and electrical coupled, and are tested simultaneously. One of the machines is run as a motor, whereas the other as a generator. the connection diagram of Hopkinson's test is given below:- For performing the test, machine I is started as a DC shunt motor and brought to rated speed with switch 'S' open. Both machines run at same speed as both are mechanically coupled. The field current of the generator (machine II) is so adjusted that its output terminal voltage changes and becomes equal to that supplied to the motor (machine I) terminals.  At this time voltmeter  V 2   reads zero voltage. the switch 'S' is closed at that instant. Under this condition, the generator will neither taking nor giving current to the supply. After this state is achieved, any desired load can then be put on the generator by controlling the induced EMF of the machines. I f2   >   I...

  ऐतिहासिक मानचित्रावली ( Historical Mapping) by  Spectrum   PDF: https://drive.google.com/file/d/1CXgUGJy2FMs5GcP0o1LtmzsiIIxJ1lhZ/view?usp=sharing

 Daily Gk  20+ coachings notes https://ohlone-my.sharepoint.com/:f:/g/personal/asmith88_student_ohlone_edu/Ej2Sw-8SUNxAo-Gl-XP_nIMBtdnjfYP41GZyEnBUkZS7wQ?e=wSFJYw

 #THE_HINDU_VOCAB  Veritable- प्रामाणिक    Apprise- सूचित करना Explicate- स्पष्ट करना Maelstrom- भंवर Dissimulate- छिपाना Histrionic- नाटकीय Iota- रत्ती Malversation- भ्रष्टाचार Supine- पीठ के बल Conflagration- अग्निकांड Errant- अनियमित Exemplar- अनुकरणीय आदर्श Recidivism- फिर से अपराध करने लगना Nosegay-फूलों का गुच्छा Digerati- कम्प्यूटरविज्ञ Avuncular- मामा समान Sagacious- निपुण Feckless- बेकार Sartorial- पहनावे का Puckish- शरारती Abulia- निर्णय-अक्षमता Vagary- अप्रत्याशितता Dotard- सठियाया हुआ Nimbus- प्रभामण्डल Insuperable- अलंघ्य Luminary- दिग्गज Appellation- उपाधि Galvanic- प्रेरक Apologia- स्पष्टीकरण Raiment- पोशाक Palliate- कम करना Quack- नकली डाक्टर Rabid- प्रचण्ड Sacerdotal- पुरोहिती Tacit- उपलक्षित Ubiquitous- सर्वव्यापक Vacillate- हिचकिचाना Waft- लहराता हुआ झण्ड़ा Xanthippe- लड़ाकी स्त्री Yammer- विलपना Zany- नासमझ Abase- अपमानित करना Backfire- प्रतिज्वलन Cacography- अशुद्ध वर्तनी Give a damn- परवाह करना Abandon- त्याग करना  Back-drop- पृष्ठभूमि, पृष...

  Contents :(Economy) National Manufacturing Policy, 2011: Make in India 2015: Globalisation: Special Economic Zones: Foreign Trade Policy 2015-2020: Click Here for Full Economy Notes Contents :(History) Following is the list of topics that must be covered for Post Independence. Partition and its impact Integration of Princely States Junagarh Jammu and Kashmir Hyderabad Manipur Integration of French and Portuguese Colonies Linguistic Reorganisation of States Integration of the Tribals Regionalism and Sons of the Soil doctrine — Covered in Social Issues Hindi as Lingua Franca Foreign Relations India’s interference in international crises Relations with USA and USSR Relations with Pakistan and China Indo-Chinese war, 1962 J.Nehru → contributions and failures Five Year Plans Opposition Parties upto 1965 Lal Bahadur Shastri Indo-Pakistan War, 1965 Indira Gandhi → contributions and failures General Elections, 1967 Naxalism in India Split in the Congress – 1969 and 1971 General Elections...

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