Correct option is D
∙ Magnetizing force is also known as magnetic field strength (H).∙ The SI unit of magnetic field strength H is ampere per metre (A/m).∙ It represents the magnetomotive force per unit length of the magnetic path.
What is the unit of magnetizing force?
What is the unit of magnetizing force?
Which among the options is voltage source equivalent of the practical current source shown below?

A copper wire is stretched so that its length is increased by 0.2%. What is the percentage change in the resistance?
Power loss and voltage drop respectively, in the 2Ω resistor is
