A semiconductor is formed by Covalent bonds. Semiconductors, such as silicon, are made up of individual atoms bonded together in a regular,... View Article
The maximum current can be drawn from a cell if the external resistance R = 0. The current flowing through the circuit is given by the formula... View Article
Microwaves have a wavelength in the range of  _____. Answer: 1mm to 1m Explanation: Microwaves have a wavelength in the range of 1 mm to 1... View Article
Fractures are detected using X – Rays. The bone is a major component of the human body. Bone provides the ability to move the body. Bone... View Article
On heating the conductor, its resistance increases. This happens due to increase in the number of collisions between free charges and positive... View Article
Answer: Alloys like manganin and constantan are used for making standard resistance coils as they have nearly independent of temperature.... View Article
The resistance in ohms in the four arms of a Wheatstone bridge are as follows. In which combination of the following is the bridge balanced?... View Article
Electric and magnetic field varying in space and time sinusoidally and propagating through space such that the two fields are perpendicular to... View Article
In electromagnetic waves, the ratio of amplitudes of the electric field and the magnetic field is equal to the velocity of the electromagnetic... View Article
