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Determne the magnetic field due to a finit sraight wire of length 2l, carrying a steady current i. The point of interest P is l distance away from the middle point of wire O.
Solution) Here from given data the angle can be calculated which is 45degree, so from formulamagnetic field can be calculated easily..
A machine gun fires a bullet of mass 40 g with a velocity 1200 m/s The man holding it, can exert . a maximum force of 144 N on the gun. How many bullets can he fire per second at
Explain corrosion This corrosion can happen either when a conducting liquid is in contact with a metal or when two dissimilar metals /alloys are is partially immersed in a con
A 25 N box is pulled vertically upward by means of a cord.Find the acceleration of the box if the tension in the cord is 35 N.
When are intermolecular forces the strongest? Intermolecular forces (dipole-dipole, dispersion and hydrogen bonds). These forces are weaker than chemical (covalent) bonds. Thus
A) Wirte two materials that are magnetic and two that are non-magnetic? B) Explain magnetic induction C) Describe what is meant by "Magnetomotive" force?
a drawing pin is pushed against a wooden table with force of 10N. calculate the pressure exerted by the pin at a point on table if area of point is 0.01m square
Electrical equipment in an office takes a current of 13A from a 240V supply. Estimate the cost per week of electricity if the equipment is used for 30 hours every week and 1kW
Calculates the total magnetic flux in ring
If A=3i+j+3k, B=-2i-4j-3k and c=2i+4j+3k. Find a unit vector parallel to 3A-2B+4C
Illustrate how temperature measured in fiber optic sensor. Temperature can be measured via using a fiber which has evanescent loss which varies along with temperature. In the f
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