OR Operation (10th-Physics-Lesson-19.13)
If we connect two switches A and B in parallel combination and make a circuit as shown in fig. 19.22. the value of the output current X in this circuit will depend upon the...
Tagged: 10th
And Operation (10th-Physics-Lesson-19.12)
In order to understand AND operation, we consider input variables A and B as two switches. There are four possible sates of these two switches which are given below: Both A and B are...
Transistor (10th-Biology-Lesson-19.7)
If a crystal of germanium or silicon is doped in such a way that n-type regions are formed at its two sides with a very thin p-type region in between, it forms an n-p-n...
Semi - Conductor Diode (10th-Physics-Lesson-19.8)
When the p and n-regions of a p-n junction are connected to metallic wires and enclosed in a glass or a metallic case in such a way that only the wires connected to n...
P-N Junction (10th-Physics-Lesson-19.7)
If a crystal of silicon or germanium is doped in such a way that its one part becomes n-type and the other p-type, then a p-n junction would be formed in between. On one...
Semi Conductor (10th-Physics-Lesson-19.3)
The material objects, on the basis of electrical properties, are classified in three groups: Conductor The substances in which electric current flows easily are called conductors. Usually, metals are good conductors. For example gold,...
Radiation Hazards (10th-Physics-Lesson-18.7)
We have already read that radiations are very useful in many ways for mankind. Radiations are being used in different ways in medical, agriculture and in some industrial units, but there is always danger...
Nuclear Fission (10th-Physics-Lesson-18.6)
In 1938, Ottohann and Stresemann bombarded slow neutrons on uranium. As the neutron is a neutral particle, so it was expected that the uranium nucleus will absorb the neutron and become a heavy uranium...
Uses of Radio Isotopes (10th-Physics-Lesson-18.4)
18. 4 Uses of Radio Isotopes Although, all the isotopes of an element chemically behave identically, but every isotope emits specific radiations due to which it is easy to identify an isotope. It is...
Half Life (10th-Physics-Lesson-18.3)
We have already studied that radioactive elements continuously emit radiations, due to which they change into new elements. For example if an a particle is emitted by an element . The atomic mass number...
