91. The attraction capacity of electromagnet will increase if the A. core length increases i B. core area increases C. flux density decreases D. flux density increases Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
92. Which of the following is expected to have the maximum permeability ? A. Brass B. Copper C. Zinc D. Ebonite Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board