Final answer:
The correct expression for an impedance of 50 OHMS with no resistance component in rectangular coordinates is 0+j50 OHMS indicating an inductive reactance of 50 OHMS without any resistance.
Step-by-step explanation:
The question is asking to identify the expression that represents an impedance of 50 OHMS with no resistance component in rectangular coordinates. Impedance in rectangular coordinates is expressed as a complex number, where the real part represents resistance (R) and the imaginary part represents reactance (X).
Given the options provided, the correct expression for an impedance of 50 OHMS with no resistance component would be 0+j50 OHMS which corresponds to letter B. This is because the real part is 0, indicating no resistance, and the imaginary part is +50, indicating an inductive reactance of 50 OHMS.