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SULIT (ЕКТ 242) 7- (СА, СОЗ, РО2) (c) The semicircular conductor with radius, r 2 m is shown in Figure 3 lies on the x- y pla

SULIT (ЕКТ242) -6 Question 4 Soalan 4 (C4, CO3, PO2) The x-y plane separates two magnetic media with magnetic permeabilitys

-5 (C4, CO2, PO2) (b) A cylinder of germanium (semiconductor) bar with o 2.2 (S/m) has a radius ofr 4mm and length, /8 mm is

SULIT (ЕКТ 242) 7- (СА, СОЗ, РО2) (c) The semicircular conductor with radius, r 2 m is shown in Figure 3 lies on the x- y plane and carries current I 32 A. The closed circuit is exposed to a uniform magnetic field, B -14. Calculate the following: [Pengalir separa bulatan dengan jejari, r 2 m ditunjukkan dalam Rajah 3 terletak di atas satah x-y dan membawa arus I-32 A. Litar tertutup tersebut terdedah kepada medan magnet seragam, B-14. Tentukan yang berikut:] (i) The magnetic force Fi acting on the straight segment of the conductor. Daya magnetik F yang bertindak ke atas segmen lurus pengalir. (3 Marks/Markah) (ii) The magnetic force F2 acting on the curved segment of the conductor. Daya magnetik Fa yang bertindak ke atas segmen lengkung pengalir (3 Marks/Markah) Figure 3 Rajah 3
SULIT (ЕКТ242) -6 Question 4 Soalan 4 (C4, CO3, PO2) The x-y plane separates two magnetic media with magnetic permeability's and 42 If there is no surface current at the interface and the magnetic field in medium 1, (a) Hi 820+940 23, calculate Ha, 0, and 02 for H3H0and u9Ho [Paksi x-y memisahkan dua media magnet dengan kebolehtelapan ul dan u2. Sekiranya tiada arus permukaan pada antara muka dan medan magnet dalam media 1 diberikan oleh H 220+940 + 23, kirakan H, 0, dan 0 untuk -3po and 9o (7 Marks/Markah) (С4, СЗ, РО2) A radial magnetic field, H-2.5x10 cos (b) A/m exist in a wire cable (u, 2). Calculate the magnetic flux crossing the surface of the wire cable defined by 0ss450 and 0szs2mwith constant radius, r Im [Satu medan magnet radial, H-2.5 x10 cos A/m berada dalam kabel wayar (u,-2). Kirakan fluks magnet yang melepasi permukaan kabel wayar yang didefinisikan oleh 0 sps 45 dan 0szs2m dengan jejari tetap r Im (7 Marks/Markah)
-5 (C4, CO2, PO2) (b) A cylinder of germanium (semiconductor) bar with o 2.2 (S/m) has a radius ofr 4mm and length, /8 mm is subjected to an electric field, E 15 (mV/m) and 0.13 (m2/V.s), n 0.05 (m2/V.s), N = 1.5 x 106 electrons/m, and N Ne Calculate the following: a 2.2 (S/m) mempunyai jejari, r-4 mm dan Silinder bar germanium (semikonduktor) dengan 8 mm adalah tertakluk kepada medan elektrik, E= 15 (mV/m) dan u-0.13 (m/V.s), panjang, -0.05 (m/V.s), N.=1.5 x 10 electrons/m, dan N N Kirakan berikut ini: The free electron and hole volume charge density (i) Isipadu ketumpatan cas elektron dan lubang bebas. (ii) The current, I flowing in the bar [Arus, I yang mengalir pada bar. The drift velocities e and (iii) [Halaju hanyutan dan n The resistance of the bar Rintangan pada bar (iv) (v) The power dissipated in the bar [Kuasa yang dilesapkan pada bar.] (5 Marks/Markah) (C4, CO2, PO2) (c) Identify THREE (3) types of electric boundary condition. Calculate the Et, 0 and 02 in the dielectric-dielectric boundary conditions if E2 82-93+23 (V/ m), e2eo, E2 = 8e9 and the boundary charge is p, 3.54 x 10-11 (C/m2). Kenalpasti tiga (3) jenis elektrik keadaan sempadan. Kirakan E, 0 dan 0 di dalam sempadan dielektrik-dielektrik jika E 2-93+ 23 (V/m),E 2g, z8E, dan cas sempadan adalah P, 3.54 x 10-11 (C/m). (10 Marks/Markah)
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