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Q. (a) Show by applying Ampere's circuital law that themagnetic field associated with a long straight, current-carrying wire is given by Bφ = µ0I/(2πr), where the subscript φ de- notes the φ-component in the circular cylindrical coordinate system,µ0 is the free-space permeability, I is the current carried by the wire, and r is the radius from the current carrying wire. What is the net force on the wire due to the interaction of the B-field (produced by the current I) and the current I?
(b) A magnetic force exists between two adjacent, parallel, current-carrying wires. Let I1 and I2 be the currents carried by the wires and r the separation between them. Use the result of part (a) to find the force between the wires. Discuss the nature of the force when thewires carry currents in the same direction, and in opposite directions.
A battery having of 12 cells are divided in three group which each group having of four cells in series. The three groups are joined in parallel. The emf of every cell is 1.5V and
show how vernier caliper works
1,Operation of face plate starter 2;Operation of a shaded pole motor 3,3 explained demerits of a rheostat method of starting adc machines
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Mention how do the DIV & IDIV instructions differ in their functionality DIV: Unsigned numbers division and IDIV: Signed number division.
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