Final answer:
The question relates to electricity in Physics and involves calculating the power angle, power factor, and circuit resistance given certain power values. Without additional information about the circuit or relevant equations, we cannot provide specific answers.
Step-by-step explanation:
The subject of this question is Physics, and it pertains to the topic of electric circuits, specifically an alternating current (AC) circuit with a given power factor and measurements of power. To address the student's question:
a) The power angle (θ) in an AC circuit can be calculated using the power factor (PF), which is the cosine of the power angle: PF = cos(θ). Given a power factor of 0.866 lagging, θ is the arccos(0.866), which is 30°. However, since the provided information is only about the power factor, real power, reactive power, and apparent power, and no specific formula or method for calculating the power angle with these values is provided in the information, the student would need additional knowledge or equations on how to find the power angle.
b) The power factor for a leading condition is not directly stated in the given information and cannot becalculated without further context on whether capacitors or inductors are being used to correct the power factor.
c) The resistance in the circuit cannot be found directly with the information given since it requires knowledge of the current or the impedance triangle and phase angle, which are not provided.
d) With respect to the available information, specific answers to (a), (b), and (c) cannot be provided since the data given is insufficient or incomplete for the calculations required.
Additional reactive power components or details about the AC circuit would be necessary to provide a comprehensive solution.