ELECTROMAGNETISM:
List of Problems:
1. A horizontal straight wire 5cm long weighing 1.2g/m is placed perpendicular to a uniform horizontal field of 0.6Weber/m2. If the resistance of the wire is 3.8 Ohm/m, calculate the potential difference to applied between the ends of the wire to make it just self supporting.
2. It is required to produce inside a toroid a field of 2 x 10-3 Weber/m2. The toroid has a radius of 15cm and 300turns. Find the current required for this purpose. If toroid is wound on an iron core of permeability 300times the permeability of free space what increase in B will occur for the same current?
Remember: more are still to come...
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