Magnesium oxide is an alkaline earth metal oxide. The hysteresis curve of magnesium oxide shows d0 ferromagnetism or defect magnetism. These... View Article
Whenever there is an external force, the law of conservation of momentum does not apply. If the object and earth are considered a closed system,... View Article
When the voltage is measured using a voltmeter in a circuit it should not alter the quality of the measurement. When a high resistance or ideally... View Article
When the entropy reaches the maximum value, the heat death of the universe happens. Heat death happens when the universe has reached equilibrium... View Article
Water does conduct electricity. Pure distilled water has minimal conductivity. The conductivity of water increases when it has impurities. For... View Article
An object is said to have zero momentum when either the mass or the velocity is zero. Since the mass of the object cannot be zero, the velocity... View Article
Conducting metals has many free electrons which move freely inside the conductor. When these conductors are kept in the electric field, the free... View Article
The electric field between the plates is constant when the plates are infinite. In order to treat the plates as infinite the distance between the... View Article
No, a transformer is not made to convert AC to DC or DC to AC. A transformer is a device used to step up or step down the alternating current.... View Article
The work function of a photo metal is the minimum energy required to remove an electron from the metal surface. The work function is the measure... View Article
A bipolar junction transistor is similar to two diodes connected back to back. However, the transistors are not designed like normal diodes. The... View Article
The rheostats are also known as wire wound resistors. Nichrome wires are generally used in rheostats. Nichrome wire is wound around a ceramic core.... View Article
Rheostat works on the principle of Ohm’s law. Ohm’s law states that current in a circuit is inversely proportional to the resistance at the given... View Article
Coulomb’s law is not a universal law since it works only for point charges and not for the distribution of charges. Since the law works only... View Article
On a hollow conductor, the charges entirely reside on the surface of the conductor. The Coulomb’s force between the charges results in the mutual... View Article
Atom is much larger than a neutron. An atom consists of a nucleus (protons and neutrons) and electrons going around the nucleus in various... View Article
Heat cannot be conducted through the vacuum since conduction will happen only when the molecules will collide. Heat transfer through vacuum takes... View Article
The force between two alpha particles is the Coulomb’s force of repulsion. The alpha particle has the same charge and therefore they repel each other.... View Article
