Assignment # 1
Basic electrical engineering
Q1.
Define the following terms as applied to a magnetic circuit:
Permeability,
Magneto-Motive Force (MMF), Reluctance, Permeance, Reluctivity
Q2.
Give analogy between electric & magnetic circuits.
Q3.
Explain briefly the following two types of losses which occurs in magnetic
materials: hysteresis losses, eddy current losses
Q4.
What do you understand by electromagnetic induction?
Q5.
Explain briefly faradays first & second laws of electromagnetic induction.
Q6.
State and explain Flemings right hand rule.
Q7.
What is lenz’s law?
Q8.
What is the difference between the dynamically and statically induced emf?
Q9.
A three phase load consists of three similar inductive coils, each of 50 Ω and
inductance 0.3 h. the supply is 415 v, 50 hz. Determine line current, power
factor, total power when load is star connected and delta connected.
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