Calculating the current in a resultant magnetic field strength between two coils.
Two single turn circular coils share a common horizontal axis and are separated by a horizontal distance of 2.5m. The radius of one of the coils is 50cm and it carries a current of 5 A. The radius of the other coil is 25cm and it carries a current I in such a direction that the magnetic field which it produces in the opposition ...continues
Electromagnetic Forces and Field
Electromagnetic Forces and Field. See attached file for full problem description.
A magnetic circuit consists of an iron core of a cross sectional area of 4cm^2 in which a cut in an air gap where a flux density of 0.9T is required. There is a leakage factor of 1.2 and fringing increases the cross sectional area of the gap by 10%. What should be the flux density in the iron?
Working with the boundary between two dielectrics. Attachments in Word.
In Figure A1 below the boundary between two ideal dielectrics is shown. Near the boundary, on Er1 side, the electric field is measured and found to be perpendicular to the boundary and equal to 100 Vm-1. a) What is the direction of the electric field E, near that boundary? b) What is the magnitude of E2? Please see atta ...continues
A coil of 500 turns is wound on a wooden ring having a mean diameter of 8cm and a cross sectional area of 1.5cm^2. Assuming relative permeability of wood is 1, calculate the self-inductance of the coil and the emf induced in it when the direction of a dc current of 5A flowing in it is reversed in 0.2sec?
Flux Density at the centre of a solenoid
Determine the magnetic flux density at the centre of a solenoid of length 20cm and diameter 50cm if it is uniformly wound with 1200 turns of wire carrying a current of 3A?
Relation between conductance and capacitance
What is the relation between the conductance and the capacitance of two parallel conductors immersed in a lossy dielectric medium that has permittivity 'e' and conductivity '@'?
Please provide workings and solutions to the problem (l and Z1) and the type of load impendances that can be matched using such circuits. Thank you.
Magnetostatics and Maxwell's Equations for the Time Varying Field
Questions on Magnetostatics and Maxwell's Equations for the Time Varying Field.
EM equation for electric field, displacement current Jd, EM equations for magnetic field
Basic EM equation for electric field Questions and solution contains special EM symbols. please see attached in word document.
