1) Which component opposes any change in current?
Correct Answer: Inductor
Explanation:

OSI stands for Open Systems Interconnection. It has been developed by ISO – ‘International Organization for Standardization‘, in the year 1984. It is a 7 layer architecture with each layer having specific functionality to perform. All these 7 layers work collaboratively to transmit the data from one person to another across the globe. 

2) What is the unit of inductance?
Correct Answer: Henry
3) Which factor determines the inductance value?
Correct Answer: Diameter of the coil
4) Find the total inductance value of two inductors 10H and 15H of connected in series.
Correct Answer: 25 H
5) What is the name of effect of changing current in one coil, induces EMF in nearby coil?
Correct Answer: Mutual induction