A coil of wire 0.20 m long and having 200 turns carries a current of 10 A.
(a) What is the magnitude of the magnetic field strength H?
(b) Compute the flux density B if the coil is in a vacuum.
(c) Compute the flux density inside a bar of titanium that is positioned within the coil. The susceptibility for titanium is given in Table 18.2.
(d) Compute the magnitude of the magnetization M.
Table 18.2 Room-Temperature Magnetic Susceptibilities for Diamagnetic and Paramagnetic Materials
Diamagnetics | Paramagnetics | ||
Material | Susceptibility xm (volume) (SI units) | Material | Susceptibility xm (volume) (SI units) |
Aluminum oxide | –1.81 × 10–5 | Aluminum | 2.07 × 10–5 |
Copper | –0.96 × 10–5 | Chromium | 3.13 × 10–4 |
Gold | –3.44 × 10–5 | Chromium chloride | 1.51 × 10–3 |
Mercury | –2.85 × 10–5 | Manganese sulfate | 3.70 × 10–3 |
Silicon | –0.41 × 10–5 | Molybdenum | 1.19 × 10–4 |
Silver | –2.38 × 10–5 | Sodium | 8.48 × 10–6 |
Sodium chloride | –1.41 × 10–5 | Titanium | 1.81 × 10–4 |
Zinc | –1.56 × 10–5 | Zirconium | 1.09 × 10–4 |
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