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Consider the following statements regarding hysteresis loops of hard and soft magnetic materials: 1. Hysteresis loss of hard magnetic material will be less than that of soft material 2. Coercivity of hard material will be greater than that of soft material 3. Retentivity of the two materials will always be equal Which of these statements are correct?
Which two classes use the Shape class correctly?
A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }
Which of the following statements are true about soft power?
1. Soft power can be used by state actors.
2. Soft power can be used by non-state actors.
3. Soft power is the second face of power.
4. Soft power is a form of idealism.
Select the correct answer:
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some flower are soft. II. No hard is soft. Conclusions: I. Some hard are flower. II. Some soft are flower.
3/4th of square were taken to form shape A and the rest was made to form shape B. Shape A was divided into four equal squares (Shape C), what will be the ratio of the one shape C to one shape B.
Consider a conducting loop of radius a and total loop resistance R placed in a region with a magnetic field B thereby enclosing a flux $${\phi _0}$$ . The loop is connected to an electronic circuit as shown, the capacitor being initially uncharged.
Electromagnetic Theory mcq question image
If the loop is pulled out of the region of the magnetic field at a constant speed u, the final output voltage Vout is independent of
If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be
A transformer core is wound with a coil carrying alternating current at a frequency of 50 Hz. The hysteresis loop has an area of 60,000 units when the axes are drawn in units of 10-4 Wb m-2 and 102 Am-1. If the magnetization is uniform throughout the core volume of 0.01 m3, the power loss due to hysteresis will be
In this question, a statement is given followed by four conclusions. Choose the conclusion(s) which best fit(s) logically. Statement: To pass the examination, one must work hard. Conclusions: I. Examination is related to only hard work. II. All those who do not work hard pass. III. Without hard work, one does not pass. IV. Hard-working person is a satisfied person.
How does number of observations influence overfitting? Choose the correct answer(s).Note: Rest all parameters are same
1. In case of fewer observations, it is easy to overfit the data.
2. In case of fewer observations, it is hard to overfit the data.
3. In case of more observations, it is easy to overfit the data.
4. In case of more observations, it is hard to overfit the data.