WebMagnetism. Electromagnetism is the force produced when an electrical current flows through a simple conductor such as a piece of wire or cable. While magnets can be made from ferromagnetic materials which attract (and repel) other materials, mainly metals. Magnetism is the force exerted by magnets as they attract or repel each other. WebDec 10, 2024 · Download Solution PDF. Two magnetic poles are located 5 cm apart in air. If each pole has a strength of 5 mWb, find the force of repulsion between them. This …
Two charges when kept at a distance of 1m apart in vacuum have …
WebThe armature of a four-pole 200 V, lap wound generator has 400 conductors and runs of 300 rpm. Determine the useful flux per pole. If the number of turns in each field coil is 900, what is the average induced emf in each field coil on breaking its connection if the magnetic flux set-up by it dies away completely in 0.1 second? WebThis set of DC Machines Questions and Answers for Freshers focuses on “EMF and Torque Production – 2”. 1. A 4-pole Dc wound machine is lap wound with 400 conductors. The pole shore is 20 cm long and average flux density over one-pole pitch is 0.4 T, the armature diameter being 30 cm. What is the value of flux/pole? a) 0.188 Wb b) 18.88 Wb itps angel house
Two similar poles one is twic... See how to solve it at QANDA
WebTwo similar poles of 2 Wb each when placed 1.2 m apart in air will experience a force between them nearest to _____ kilo-Newtons. A. 175.905 B. 195.075 C. 150.975 D. … WebAug 26, 2024 · The force of attraction between the two magnetic poles which are at rest is directly proportional to the product of their pole strengths; Formula: F = (μ₀/4π) * (m₁m₂ / … WebTwo similar poles each of 1 mWb flux are place 10 cm apart in air. ... Find the current I required to establish a fluxφ = 2.4 × 10−4 Wb in the magnetic circuit ofFigure. Here area … nelum flower