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Explain Electricity and static electricity
Electricity - study of stationary (static) or moving charges
Static Electricitiy (Electrostatics) - electric charges at rest
Two types of charges: (i) negative (electrons, negative ions);
(ii) positive (protons, positive ions)
An object that is moving in a straight line with speed v covers a distance, d = vt, in time t. Rewrite the equation to find t in terms of d and v. How long does it take a plane tha
Whenever there is a relative speed among a source of sound and the listener, the apparent frequency of sound listen by the listener is dissimilar from the real frequency of sound e
An elementary particle is: (1)An element present in a compound (2)An atom present in an element (3)A sub-atomic particle (4)A fragment of an atom Ans: (3)A s
Explain the formula of the Stefan law. STEFAN'S LAW: P = σ AT 4 Here: P = Power radiated into W (J/s) σ = Stefan's Constant 5.67 x 10 -8 W m -2 K -4 A = Su
Megavoltage therapy: Kerst developed the betatron which accelerates electrons to high energy .It open a new radiation therapy era-the supervoltage or megavoltage era.Another
How much pressure produced by 6" diameter cylinder with height of 14" at 95 degrees Celsius
A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If the frictional force is 80 newtons. What is the magnitude of the northward
In the circuit shown in Figure, the slider S is at the half-way point. (a) Calculate the p.d. across and the current flowing in the 400 Ω load resistor. (b) Is the circuit a
what is the difference between like and unlike pararell forces?
(a) With the help of a labelled diagram, define the principle and working of a moving coil galvanometer. (b) Two parallel coaxial circular coils of equal radius 'R' and equal nu
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