Then the conduction angle for this type of amplifier circuit is only 180 o or 50% of the input signal. This pushing and pulling effect of the alternating half cycles by the transistors gives this type of circuit its amusing âpush-pullâ name, but are more generally known as the Class B Amplifier as shown below.
Like Lake Tanganyika, Lake Baikal was formed as an ancient rift valley, having the typical long crescent shape with a surface area of 31,722 km2 (12,248 sq mi). Baikal is home to thousands of species of plants and animals, many of which exist nowhere else in the world.
If a river meets a barrier, either a natural dam or a fabricated one, a lake will result from the buildup of water. Underground water may rise to the surface through land shifts, erosion, or springs to make a lake. Saltwater lakes can also be created by land cutting off a part of the ocean. Essentially, wherever water gathers without an outlet, a pond or lake will form. More than 300 rivers feed Lake Baikal in Russia.