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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?
If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be
If ‘figure 1’ represents ‘Lux’, ‘figure 2’ represents ‘Herbal’, ‘figure 3’ represents ‘Dove’ and ‘figure 4’ represents ‘Shampoo’, then which alphabet represents ‘Herbal shampoo but neither lux nor dove’?
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.
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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
Study the following diagram and answer the question that follows: If ‘figure A’ represents ‘Delhi’, ‘figure B’ represents ‘Women’, ‘figure C’ represents ‘Educated’ and ‘figure D’ represents ‘Married’, then how many educated women of Delhi are not married?
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 the following figure, square represents the people who use the product of Colorbar, the triangle represents the people who use products of NYX, the circle represents people who use products of M.A.C., the rectangle represents people who use products of Maybelline and semi-circle represents the people who use the products of Lakme. Which set of letter(s) represents people who use more than one product?
In the following figure, square represents the people who use the product of Colorbar, the triangle represents the people who use products of NYX, the circle represents people who use products of M.A.C., the rectangle represents people who use products of Maybelline and semi-circle represents the people who use the products of Lakme. Which set of letter(s) represents people who use products of M.A.C. and NYX only?
In the following figure, square represents the people who use the product of Colorbar, the triangle represents the people who use products of NYX, the circle represents people who use products of M.A.C., the rectangle represents people who use products of Maybelline and semi-circle represents the people who use the products of Lakme. Which set of letters represents people who use only products of Colorbar?
If ‘figure 1’ represents ‘Brush’, ‘figure 2’ represents ‘Paint’, ‘figure 3’ represents ‘Tooth’, then which letter represents ‘Tooth Brush’?