This post discusses a typical experimental setup for the Measurement of coefficients of friction. As you well know, it’s easier to push an object from one point to another than to carry it from one point to another. We usually just accept this observation as ... Continue Reading
This post covers the fundamentals of Electromagnetic Waves in a question-answer (FAQ) session. What Are Electromagnetic Waves? Electromagnetic waves are waves that consist of vibrating electric and magnetic fields. Like other waves, electromagnetic waves transfer energy from one place to another. The transfer of energy ... Continue Reading
In this post we will find what static discharge is and how lightning occurs. Also we will answer a few FAQs on static electricity. What is static discharge - can you explain with an example? The sudden flow of electrons is static discharge. This can ... Continue Reading
In this post we will discuss in detail about the transformer equation and transformer efficiency. We will also solve a few numerical problems using the transformer and efficiency equations. The Transformer equation The secondary potential difference of a transformer depends on the primary potential difference ... Continue Reading
What is a transformer? A transformer is used to change or transform alternating potential difference between (a) the power station and the cables, and (2) between the cables and our home. A typical power station generator produces an alternating potential difference in Kilo Volt(KV) range ... Continue Reading
There are three different processes through which energy can be transferred during heating and cooling: conduction, convection, and radiation. Conduction is the transfer of heat through a substance as a result of collisions between neighbouring vibrating particles. Convection is the transfer of heat through a ... Continue Reading
In this post, we will discuss how to calculate the resultant of two vectors easily. The resultant of two vectors can be done in different methods like (1) Using the Triangle Law, (2) Using the Law of Parallelogram, and (3) using Rectangular Components & Pythagoras ... Continue Reading
An oscilloscope is an instrument used to investigate electrical signals. The screen of the oscilloscope displays a trace of the electrical signal and in almost all cases this is a graph of potential difference versus time. Let's discuss oscilloscope & its signal attribute, DC trace, ... Continue Reading
Here we will discuss the Polar form and Cartesian form of Vector representation. Vectors may be represented in two ways: Polar form and Cartesian form. Let's discuss these in detail. Polar Form of Vector In Polar form, a vector A is represented as A = ... Continue Reading
This post presents a Q&A worksheet covering distance-time graph and velocity-time graph. Before you try to solve these, you may read our posts on the distance-time graph (d-t graph) and the velocity-time graph (v-t graph). Worksheet on distance-time graph 1 ) The distance-time graph for ... Continue Reading
Car safety, momentum & force (GCSE Physics) - Here, we will discuss how momentum and force in physics can influence car safety and its design. The force on a person in a car crash can be very large and the force can be worked out ... Continue Reading
In this post, we will discuss the fundamental understanding of magnetism. Also, a number of related terminologies like magnetism, magnetic fields, ferromagnetic, paramagnetism, diamagnetism, permanent magnet, poles of magnets, magnetic attraction & repulsion, drawing field lines, a bar magnet, retentivity, compass, earth as a magnet, ... Continue Reading
We will discuss and list down the formulae of position, velocity, and acceleration related to the Motion in two and three Dimensions using unit vectors i, j, and k format. We will list down the 2-Dimensional equivalent of motion equations or suvat equations. Also, we ... Continue Reading
Unlike conductors, the electrons in insulators (non-conductors) are bound to the atoms of the insulator and cannot move around freely through the material. However, a charged object can still exert a force on a neutral insulator due to a phenomenon called polarisation. If a positively ... Continue Reading
This post defines the magnetic field and magnetic field lines. This also enlists the properties of magnetic field lines. What is Magnetic field? | Define magnetic field Magnetic Field & Magnetic Field Lines The space or area around a magnet in which its magnetic force can ... Continue Reading
Let's see how to use the Vector Cross product to find the Area of a Parallelogram. Here we will see that the magnitude of the cross product of vector AB and AC gives the area of the parallelogram ABCD. (reference: the image below) ABCD is ... Continue Reading
Let's see how to use the Vector Cross product to find the Area of a Triangle. Here we will see that half of the magnitude of the cross product of vector AB and AC gives the area of the triangle ABC. (reference: the image below) ... Continue Reading
This post covers Vectors class 11 Physics revision notes – chapter 4 with concepts, formulas, applications, numerical & Questions. These revision notes are good for CBSE, ISC, UPSC, and other exams. This covers the grade 12 Vector Physics syllabus of some international boards as well ... Continue Reading
Let's find out some important one-liner definitions from the work-energy-machine chapter in physics. FAQ & definitions from the work-energy-simple machine chapter What is a complex machine? a machine that combines two or more simple machines define efficiency Efficiency is output work divided by input work ... Continue Reading
Of all simple machines, the mechanical advantage is easiest to calculate for pulleys. To find out the mechanical advantage of a Pulley, simply count the number of ropes supporting the load. That is the IMA or Ideal Mechanical Advantage of Pulley. Once again we have to ... Continue Reading
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