Science Facts Set-3

• Current is the rate of flow of charges across any cross sectional area of a conductor.
• A sharp conductor loses its charge more rapidly than a blunt conductor. This phenomenon is called 'action of points' or 'corona discharge'.
• A digital signal has two discrete levels (states). They are logic 1 and logic 0.
• MASER means Microwave Amplification by Stimulated Emission of Radiation.
• There are about 4000 species of cockroaches living on Earth.

• The camel's feet have been so specially adapted so that they can travel in the desert.
• A capacitor is a device used to store electric charges.
• Insulators are materials that do not allow electric charges to pass through them.
• In Electrostatics, like charges repel each other and unlike charges attract each other.
• A typical African Elephant is larger than a typical Asian Elephant.