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Uses of Transistor:
In a transistor the base current it plays a significant role in the collector current IC. A small change in the base current forms a large change in the collector current. Because of this characteristic a transistor can also be used as an amplifier in more electronic devices.
In Thomson's effect we pact with only metallic rod and not with thermocouple as in Peltiers effect and Seebeck's effect. (That's why sometimes it is called as homogeneous thermo el
Properties of cement mortar 1. It should make good adhesion with building units like bricks, stones etc. 2. It should be capable of resisting penetration of water. 3. It s
Retina It is inner most and sensitive layer. It receives images of near and far objects.
When current is passed by a junction of two dissimilar solids, the temperature is either evolved or absorbed at the node. This effect is known as Peltier effect
For an infinite sheet of positive charge, the electric field lines: a) Run parallel to the sheet of charge b) Are perpendicular to the sheet of charge and point in toward
What is packing polymorphism When polymorphism exists as a result of change in crystal packing, it is called packing polymorphism. Polymorphism can also result from the existen
Detection (Receiver): The antenna receiver these modulated waves from different transmitting stations. Channel selector selects the desired signals. The selected signals are am
A bomber plane moves horizontally with a speed of 500 m/s and a bomb released from it, strikes the ground in 10 sec. angle at which it strikes the ground will be (g=10m/s) 1. tan
Ngan has a weight of 314.5 N on Mars and a weight of 833.0 N on Earth. a. What is Ngan's mass on Mars? b. What is the acceleration due to gravity on Mars, g Mars ?
Q. Geosynchronous Orbit Communications satellites are able to be placed in equatorial orbits at a distance which results in an orbital period of one day. Therefore the satellit
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