UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 02nd February 2021. Important news and views to... View Article
Nichrome wire cannot be replaced by other materials. It has a very high resistance to the flow of current. It produces heat when current flows... View Article
According to Avogadro's Law, at constant temperature and pressure, the volume of the gas is directly proportional to the number of moles for a... View Article
A mole is a SI unit for measuring large quantities of subatomic substances like atoms, molecules or smaller particles. A mole of any substance... View Article
The water molecules attract each other. The partially positive end of the hydrogen atom of one molecule attracts the highly negative end of the... View Article
Reverberation is the collection of all the sounds reflected from different surfaces when the sound undergoes multiple reflections. When sound is... View Article
According to Kepler’s law, the time period of the earth’s satellite is given by T2 = 4π2R3/GM M is the mass of the earth R is the mean... View Article
The magnesium metal is paramagnetic in spite of not having an unpaired electron. Magnesium metal shows very small paramagnetic properties since... View Article
The curie point or the curie temperature is the point at which certain magnetic materials lose their permanent magnetic properties. Most of the... View Article
An electrophile is a positive or neutral species that is electron deficient. Sodium-ion is not an electrophile since it does not have an empty or... View Article
Equipotential lines are lines of the same potential. The equipotential surfaces of different potentials will never cross each other. The... View Article
If the current and the voltage value is known for the whole circuit then we can determine the total resistance uint the Ohm’s law. The formula... View Article
The sulphuric acid is used as an electrolyte in lead-acid batteries. During the discharge of lead-acid batteries, the lead sulphate is formed on... View Article
LiCl is an ionic compound but it also has small covalent characteristics due to the small size of Lithium. The polarising power of lithium is... View Article
When the object vibrates slowly, low pitch sound is produced. Few examples of low pitch sound are the human heartbeat, the roar of a lion and... View Article
Molecular weight is the ratio of the mass of the substance to the amount of substance. In other words, molecular weight is the mass of one mole... View Article
AC power cannot be stored but DC power can be stored. In order to store electrical energy alternating current is converted to direct current.... View Article
Capillary action is the flow of liquid in narrow spaces. The increase in the density of the liquid will decrease the height to which the liquid... View Article
