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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?
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
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
The accompanying image shows a large cube made of dark and white small sugar cubes. Small cubes of the diagonally arranged row of the bottom surface of the large cube, small cubes of the row with one face on the right-hand surface of the large cube, small cubes of the row with one face on the front surface of the large cube, and small cubes of the column with one face on the top of large cube surface are all dark. Select the number of small white cubes of the large cube.
A circular current carrying loop is placed in a uniform magnetic field B which is perpendicular to the plane of the circular loop. Find the force on the circular loop of radius R and the current in the loop is I.
The increase depends on the type and length of loop that is introduced by the non-complementary base pair, whether internal loop, bulge loop, or hairpin loop.
A certain inverting amplifier has a closed-loop voltage gain of 25. The OP-amp has an open-loop voltage gain of 100,000. If an OP-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain
Which of the looping statements is/are supported by PHP?
1. for loop
2. while loop
3. do-while loop
4. foreach loop
The while loop is referred to as a(n) _____ loop because the loop condition is tested at the beginning of the loop
Which of the following losses are NOT deductible from business Income? A. Loss incurred in closing down the business B. Loss incurred due to damage destruction etc. of capital assets C. Loss of stock-in-trade due to enemy action D. Loss sustained before the business is commenced E. Loss of raw material finished good-in-transit Choose the correct answer from the options given below: