Torque is a vector quantity having both magnitude and direction. A screwdriver can be turned both clockwise and anticlockwise to advance the... View Article
The multimeter is a metre with multiple functions. Multimeters are commonly used to measure voltage, resistance and current. Therefore,... View Article
The transfer of heat by convection requires a material medium. Convection is caused by the bulk movement of the molecules in a fluid and molten rock.... View Article
The entropy change of the system is given by the difference between the entropy at the final state and the entropy at the initial state. If there... View Article
The laws of thermodynamics are based on certain observations. A law is an observed behaviour of that nature and not an explanation of that... View Article
The latent heat is called hidden heat because it does not reflect as temperature changes. Latent heat remains hidden during the change of state.... View Article
Air core inductors are used in RF running coils, filter circuits, snubber circuits. It is used in TV and radio receivers for high-frequency... View Article
The diamond is the hardest material. It also has the highest Young's modulus. Young's modulus is the ratio of longitudinal stress by longitudinal... View Article
Semiconductors are materials with smaller bandgaps. Insulators and conductors are not semiconductors. Materials like silicon and germanium are... View Article
