Electromagnetic Waves Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as “Electromagnetic Waves”. The electric field and magnetic field of an electromagnetic wave are perpendicular (at right angles) to each other. They are also perpendicular to the direction of the EM wave. The waves Read more about Electromagnetic Waves[…]
Amplitude Modulation Modulation is the process by which one or more properties of the digital or analog signal are varied so that the signal can travel longer distance from its source to destination. We know that the sound wave travels through the medium (air) but while in transit it gets absorbed by objects and hence Read more about Amplitude Modulation[…]
Energy Stored in a Capacitor A capacitor is a device for storing energy. When we connect a battery across the two plates of a capacitor, it gets charged. The potential difference gradually increases across the two plates and the battery had to do more work to deliver the same amount of charge due to the Read more about Energy Stored in a Capacitor[…]
Principle of Superposition of Waves The principle of Superposition states that when two waves of the same kind meet at a point in space, the resultant displacement at that point is the vector sum of the displacements that the two waves would separately produce at that point. Interference refers to the superposing of two or Read more about Principle of Superposition of Waves[…]
Ideal Gas Equation To know the property of gasses we need to have a standard gas, but which gas should it be? Helium, Oxygen, Nitrogen, Hydrogen, Carbon dioxide and there are thousands of other gasses we have to learn, but our scientists have found that no matter what gas we study, if we take one Read more about Ideal Gas Equation[…]
Rocket Propulsion When ordinary vehicles, such as automobiles and locomotives, are propelled, the driving force for the motion is friction. In the case of the automobile, the driving force is the force exerted by the road on the car. A locomotive “pushes” against the tracks, hence, the driving force is the force exerted by the Read more about Rocket Propulsion[…]
Specific Heat Capacity Let’s understand the concept of specific heat capacity with the help of examples. Let’s take an equal quantity, say 1 litre, of three liquids. Water, Mustard Oil and Mercury. The concept of specific heat is related to a body’s thermal properties. Let’s heat up these three liquids using the same stove, maintaining Read more about Specific Heat Capacity[…]
Calorimetry Calorimetry is the field of science that deals with the measurements of the state of a body with respect to the thermal aspects in order to examine its physical and chemical changes. The changes could be physical such as melting, evaporation etc. or cloud also be chemical such as burning, acid – base neutralization Read more about Calorimetry[…]
Rolling Motion Rolling Motion is a composite motion, in which the body rotates about a moving axis as it translates from one position to another. In our daily life, we observe various moving cars, bikes, rickshaws etc. All these circular wheels possess rolling motion. A body such as a sphere or a wheel or primarily Read more about Rolling Motion[…]
Resolution of Vectors and Rectangular Components The process of a splitting a vector is called resolution of a vector. In simpler language it would mean, determining the effect of a vector in a particular direction. The parts of the vector obtained after splitting the vector are known as Components of the Vector. Rectangular components of Read more about Resolution of Vectors and Rectangular Components[…]