Two horizontal parallel conducting rods are connected such that a conducting crossbar free to slide along them has a constant current I running through it (Figure 1) . The rods are separated by a distance L and are in an external uniform magnetic field of magnitude B directed out of the screen. The crossbar has a length L and mass m.
If there is a coefficient of static friction between rods and crossbar, what is the minimum current I necessary for the crossbar to move? For the length L of the bar use the notation l.
Express your answer in terms of some or all of the variables l, B, m, the static friction , and the acceleration due to gravity g.

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the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

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answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation