(b) Figure 2 shows a rectangular magnetic core with relative permeability of the core is 4000. The number of turns, N is given as 500 while the sectional area Ae is 4 x4 cm² as shown. Given that the air gap, G is you last non zero matrix number (for example 1: 2110123420 so G =2, example 2: 201012340-5 so G =4). Solve the following: (i) Sketch the equivalent analogous electrical circuit of the magnetic circuit in Figure 2. (ii) Calculate the circuit reluctance, R (iii) The magnetic flux, of the circuit if flux density, B is 1.5 T in the air gap. (iii) The exciting current, i

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1
E
E
Mean flux path
N
G mm (air gap)
Ac-4x4 cm²
Figure 2
(b)
Figure 2 shows a rectangular magnetic core with relative permeability of the core is
4000. The number of turns, N is given as 500 while the sectional area Ac is 4 x4 cm² as
shown. Given that the air gap, G is you last non zero matrix number (for example 1:
2110123420 so G=2, example 2: 201012340-5 so G =4). Solve the following:
(i)
Sketch the equivalent analogous electrical circuit of the magnetic circuit in
Figure 2.
(ii)
Calculate the circuit reluctance, R
(iii)
The magnetic flux, of the circuit if flux density, B is 1.5 T in the air gap.
(iii)
The exciting current, i
20 cm
18 cm
Transcribed Image Text:1 E E Mean flux path N G mm (air gap) Ac-4x4 cm² Figure 2 (b) Figure 2 shows a rectangular magnetic core with relative permeability of the core is 4000. The number of turns, N is given as 500 while the sectional area Ac is 4 x4 cm² as shown. Given that the air gap, G is you last non zero matrix number (for example 1: 2110123420 so G=2, example 2: 201012340-5 so G =4). Solve the following: (i) Sketch the equivalent analogous electrical circuit of the magnetic circuit in Figure 2. (ii) Calculate the circuit reluctance, R (iii) The magnetic flux, of the circuit if flux density, B is 1.5 T in the air gap. (iii) The exciting current, i 20 cm 18 cm
My matric number 201771381
Figure 2 shows a rectangular magnetic core with relative permeability of the core is
4000. The number of turns, N is given as 500 while the sectional area Ac is 4 x4 cm² as
shown. Given that the air gap, G is you last non zero matrix number (for example 1:
2110123420 so G=2, example 2: 201012340-5 so G =4). Solve the following:
Transcribed Image Text:My matric number 201771381 Figure 2 shows a rectangular magnetic core with relative permeability of the core is 4000. The number of turns, N is given as 500 while the sectional area Ac is 4 x4 cm² as shown. Given that the air gap, G is you last non zero matrix number (for example 1: 2110123420 so G=2, example 2: 201012340-5 so G =4). Solve the following:
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