free moving charged particles

Summary - The Biot-Savart law asserts that the magnetic field dB due to an element dl carrying a steady current i at a point P at a distance r from the current element is: The constant m 0 has the exact value m 0 = 4 p x 10 - 7 T m A - 1 It is the permeability of free space. It is related..

2) When the charges move parallel or anti-parallel to the magnetic field, q = 0 o or 180 o , the is zero in such cases. ..

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They get deflected by electric and magnetic fields. The deflection is large since a beta particle is lighter than an a -particle. They affect photographic plates. They ionise the gas through which they pass. The mass is 9.1 x 10 - 3 1 kg and its charge i..

Summary - Electric charge is a basic property of all matter. Unlike charges attract, like charges repel. Conductor allow flow of electric charges through them while insulators don't. Electric charges have three basic properties (a) Additivity (b) Qu..

02. - Two wires A and B have the same length of 44 cm, and carry a current of 10 A each. Wire A is bent into a circle and wire B is bent into a square. (a) Which wire produces a greater magnetic field at the centre? (b) Obtain the magnitudes of the fields at the centres of the two wire..

04. - A solenoid 50cm long has 4 layers of windings of 350 turns each. The radius of the lowest layer is 1.4cm. If the current carries is 6.0A, estimate the magnitude of B (a) near the centre of the solenoid on it's axis and off it's axis (b) near it's ends on it's axis (c) outside the solenoid nea..