Moving coil galvanometer is a device which is used to detect and measure small electric currents present in an electric circuit. Principle It is based on the principle that, “When a current carrying coil is placed in magnetic field, it…
Derivation of Expression for Torque on a Rectangular Coil
Let us consider a rectangular coil PQRS of length ‘l’ and breadth ‘b’ suspended in uniform horizontal magnetic field ‘B’. Let the plane of the coil make an angle ‘θ’ with the direction of magnetic field. When current ‘I’ is…
Yoshiro Mori
Yoshiro Mori, the winner of Padma Bhushan Award in 2004 was born in 14 July 1937 in Nomi, Ishikawa, Japan. He was born in wealthy family of Shigeki and Kaoru Mori. His mother died when she was seven due to…
Benzene and Its Preparation
Benzene is a cyclic compound which consists of six carbon atoms where there is presence of alternate double bonds and single bonds. It is an aromatic hydrocarbon which consists of six carbon atoms where there is presence of alternate double…
SLC Model Question Set 2 (HPE)
SLC Model Question Set 2 (HPE) Full Marks: 75 Pass Marks: 24 Group A Very short answer questions. (1 × 1 = 10) 1. Write one element of population composition. 2. If the annual population growth rate of a place…
Hybridization
The formation of certain molecules involving Carbon, Boron, Beryllium etc. cannot be explained satisfactorily on the basis of VSEPR (Valence Shell Electron Pair Repulsion) Theory. Hence, a new concept called hybridization is developed to explain the shape of these molecules…
SLC Model Question Set 1 (Accountancy)
SLC Model Question Set 1 (Accountancy) Full Marks: 75 Pass Marks: 24 Group A Answer the following questions in one sentence. (5 × 1 =5) 1. What is the full form of WTO? 2. What is a bearer cheque? 3.…
Primary Standard Substance and Normality Factor
Primary Standard Substance The solution having known concentration is called standard solution. The substance whose standard solution can be prepared directly by dissolving required amount of the substance in definite volume of solution is called primary standard substance and the…
SLC Model Question Set 1 (English)
SLC Model Question Set 1 (English) Full Marks: 75 Pass Marks: 24 (Reading Writing) 1. Read the following poem and do the activities that follow. (5) Breathes there the man, with soul so dead, Who never to himself hath said,…
Nokia Launches Lumia 1020
Nokia, one of the oldest mobile phone producers, has recently launched its new smartphone with a camera of 41 megapixels. The name of that smartphone with such type of powerful camera is Nokia Lumia 1020. Nokia has ensured that the…
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