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The electrostatic shielding may be found by protecting and enclosing the sensitive instruments inside a hollow conductor due to inside hollow conductors, electric fields is zero.
(i) It is for this reason that it is safer to sit in a car or a bus during lightening rather than to stand under a tree or on the open ground.
(ii) A high voltage generator is usually enclosed in like a cage which is earthen. This would stop the electrostatic field of the generator from spreading out of the cage.
(iii) An earthed conductor also acts as a screen against the electric field. When conductor is not earthed field of the charged body C due to electrostatic induction continues beyond AB. If AB is earthed, induced positive charge neutralizes and the field in the region beyond AB disappears.
Explain the Kinetic Theory Kinetic theory looks at how each of these steps adds more internal kinetic energy (jiggle energy) to the material. A solid is a framework of atoms an
For which of the following does the centre of mass lie outside the body 1. A pencil 2. A shotput 3. A dice 4. A bangle Solution) 4. bangle ; centre of mass of hollow objects
The energy band formed by a series of energy levels having valence electrons is called as valence band. At 0 K, the electrons fulfill the energy levels in valence band initialising
Write a mathematical expression for deviation produced by a thin prism and illustrate the terms.
Consider a circular loop in a magnetic field. The loop is made of elastic material with spring constant k. It carries a current I and has radius R when unstretched. We immerse it i
The physical value which does not depend on any other physical quantity is known as a fundamental physical quantity like length; mass and time are known as fundamental units.
Explain about the inverse piezoelectric effect. Inverse piezoelectric effect: While an alternating e.m.f is applied to the opposed faces of a quartz or tourmaline crystal th
Capacitor have thin conducting plates (usually made of metal) separated by a layer of dielectric, then stacked or rolled to form a compact device. Many types of capacitors are avai
HOW CAN A PURE SPECRUM BE PRODUCED IN THE LABOLATORY
Explain the Nuclear Chain Reactions Fission is the breaking up of a massive nucleus into two fragments, with the release of energy and some particles. Uranium 235 fissions upon
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