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Tag: chemistry

Energy & Electricity in Science : How Is Nuclear Energy Produced?

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Energy & Electricity in Science : How Is Nuclear Energy Produced?

Hi I’m Steve Jones, and I’m going to briefly tell you how nuclear energy is produced. Now obviously this is not a drawing of a nuclear power station, simply because it’s a very complex thing. But it’s actually a very simple process. Withing the nuclear reactor at the center you have the reactor itself, which […]

21. Class 12th Physics | Terrestrial Magnetism | Tangent Galvanometer | by Ashish Arora

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21. Class 12th Physics | Terrestrial Magnetism | Tangent Galvanometer | by Ashish Arora

let us now study an important experimental setup. which we call tangent galvanometer. we can write that this is the device. for which we can say this is used. to measure. horizontal component. of. earths magnetic field. we can also write that any point. on earth surface. where this device is used. lets first discuss […]

Antistatic Room

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Antistatic Room

What do I do here? You just take your foot and press down hard. When you enter the production area, you have to put on some special shoes in order to protect the electronics from electrostatic discharge. And they have a conductive strip here, so you put it on your shoe and put the strip […]

22. Physics | Terrestrial Magnetism | Solved Example-4 on Classical & Terrestrial Magnetism (GA)

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22. Physics | Terrestrial Magnetism | Solved Example-4 on Classical & Terrestrial Magnetism (GA)

in this example we are given that at a point on earth surface, horizontal component of earth’s magnetic field is 40 micro tesla. and the dip angle is 30 degree and we are required to find the total magnetic field of earth at this point. so in this situation we know at a point if […]

Energy & Electricity in Science : How Is a Photon Produced?

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Energy & Electricity in Science : How Is a Photon Produced?

Hi, I’m Steve Jones and I’m going to tell you how a photon is produced. Now in an atom of course we have a nucleus but above the nucleus we have electrons. And it was discovered last century, the twentieth century that electrons can’t have any levels, they can only have specific levels of energy. […]

7. Class 12th Physics | Terrestrial Magnetism | Magnetic Induction due to a Bar Magnet

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7. Class 12th Physics | Terrestrial Magnetism | Magnetic Induction due to a Bar Magnet

lets study the magnetic induction due to a bar magnet on equatorial line. equatorial line is the line along the perpendicular bisector of a bar magnet similar thing we have studied in electrostatic also. here if the pole strengths of the magnet are considered as plus m and minus m. equal in magnitude but the […]

Energy & Electricity in Science : How Does Inertia Work?

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Energy & Electricity in Science : How Does Inertia Work?

Hi I’m Steve Jones, and I’m going to tell how inertia works. Or should I say I’m going to tell you how inertia doesn’t work, actually. Because inertia is one of those strange things. It’s a word which means basically a resistance to doing something. A resistance to changing. People often have inertia, particularly on […]

16. Physics | Terrestrial Magnetism | Direction of Earth’s Magnetic Field | by Ashish Arora (GA)

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16. Physics | Terrestrial Magnetism | Direction of Earth’s Magnetic Field | by Ashish Arora (GA)

let us study some facts about direction of earths magnetic field. as we already seen this picture, that. earths magnetic field is due to. the rotation of, iron alloy particles inside the core of earth. due to which magnetic field originate from the southern hemisphere of earth and it terminates on the northern hemisphere. and […]

10. Physics | Terrestrial Magnetism | A Finite Length Solenoid Behaves as a Bar Magnet (GA)

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10. Physics | Terrestrial Magnetism | A Finite Length Solenoid Behaves as a Bar Magnet (GA)

let us discuss the concept which is similar to the when we have discussed in previous section and this is a finite length solenoid behaves as a bar magnet. in a previous section we have studied that a very small coil behaves like a short magnetic dipole. here if we just have a look on, […]

19. Class 12th Physics | Terrestrial Magnetism | Agonic and Isogonic Lines | by Ashish Arora

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19. Class 12th Physics | Terrestrial Magnetism | Agonic and Isogonic Lines | by Ashish Arora

let us discuss some more important terms in terrestrial magnetism, these are agonic and isogonic lines on earth surface. if we just talk about. agonic line. about agonic line we can state that. it is the. circle. on earth surface. which passes. through, geographic. as well as. magnetic poles. of earth. the circle, which contain. […]