ELECTRONIC AND MAGNETIC PHENOMENA
Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..
ELECTRONIC AND MAGNETIC PHENOMENA
Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..
Static Electricity
Static Electricity - Static electricity was known to people more than 2500 years ago. The Greeks knew about the attractive property of the resin amber. They knew that by rubbing amber with cloth, it could be made to attract small feathers. The Greek name for amber was 'elektron'..
3. The interiors of a conductor can have no excess charge in static situation
In a static situation, when a conductor is charged, the excess charges reside only on the surface. If we consider any arbitrary volume inside a conductor, the electrostatic field on closed surface bounding the arbitrary volume is zero. Thus, the flux through the surfa..
..Charging by conduction
It should always be remembered that whenever you have to charge a body, it must be insulated from the earth. It means that the body should be supported on a stand which is made of an insulating material which does not allow charges to pass into the earth. Fix the metal sphere '..
It should always be remembered that whenever you have to charge a body, it must be insulated from the earth. It means that the body should be supported on a stand which is made of an insulating material which does not allow charges to pass into the earth. Fix the metal sphere '..Charging by contact and conduction
Touch the cap 'C' of the electroscope with a rod 'A' carrying a negative charge or with a rod 'B' carrying a positive charge. In both cases the leaves diverge. ..
Touch the cap 'C' of the electroscope with a rod 'A' carrying a negative charge or with a rod 'B' carrying a positive charge. In both cases the leaves diverge. ..Distribution of charge over surfaces
Since the charges repel, the charge on a hollow or solid metal sphere will move away from the centre as far as it will go. Thus the charge on a conductor of any shape is always found on the surface and never inside the conductor. It has been found that a chargedh..
Since the charges repel, the charge on a hollow or solid metal sphere will move away from the centre as far as it will go. Thus the charge on a conductor of any shape is always found on the surface and never inside the conductor. It has been found that a chargedh..Two Kinds of Electric Charges
You can electrify a glass rod by rubbing it with silk. Suspend such an electrified rod by a silk thread as shown in figure. If you bring another glass rod electrified in the same manner, you will notice that the rods repel each othe..
You can electrify a glass rod by rubbing it with silk. Suspend such an electrified rod by a silk thread as shown in figure. If you bring another glass rod electrified in the same manner, you will notice that the rods repel each othe..See what our Users say :
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