Huygens was an outstanding mathematician who proposed the Huygens principle. Huygens principle states that every point on the wavefront is a... View Article
It can be very dangerous to touch a charged capacitor, so it is important to avoid touching the terminals at any point. It also depends on the... View Article
The x rays and gamma rays are waves of very high frequency and energy. They are called ionising radiations and are extremely harmful to humans.... View Article
A plane wave is a wave whose wavefronts are infinite parallel planes and it is parallel to the direction of propagation of the wave. These waves... View Article
Aluminium is paramagnetic, meaning it is weakly magnetic in a high magnetic field. The magnetism is so weak that it is impossible to stick a... View Article
Charles law states that at constant pressure, the volume of the fixed amount of gas is directly proportional to its absolute temperature.... View Article
Iron Nitride produced by combining iron and nitrogen is considered a stronger magnet than neodymium. Neodymium is a rare earth magnet. The cost... View Article
Drift current is the current flow in the diode due to the applied electric field. Diffusion current is the current due to the diffusion of the... View Article
When the Zener diode is connected in forward bias it behaves like a normal diode. The current passing through the diode is linear with respect to... View Article
Solar cells act like a PN junction diode. Under the sun, the photocurrent in the solar cell flows in the diode reverse bias direction. When it is... View Article
The diode must be connected in forward bias and reverse bias to a multimeter and the corresponding reading must be noted. A good diode in forward... View Article
Diodes are passive devices. Passive devices can only receive energy which can absorb, dissipate or store it in the magnetic field or electric field.... View Article
The communication system consists of three basic components: transmitter, channel and receiver. The transmitter does the modulation of the... View Article
