A T.G. has 500 turns, each of radius 2π cm. If BH = 3.6 x 10-5 Wb/m², find its reduction factor. Find the deflection due to a 12 mA currents.
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- For a solenoid in vacuum of length l = 10 cm with 104 turns per meter calculate the current required to create the field B= 70 μT. Provide your answer in SI units.A cylindric mica insulator to be used between a 100 kV DC line and ground has a diameter of 5 cm. The insulator is expected to prevent currents of more than 1 nA^1 . Find the minimum required length of the porcelain cylinder.If the solenoid of Figure 7.9 has 2,000 turns, a length of 75 cm, a radius of 5 cm. and carries a current of 50 mA along a, find H at I (a) (0, 0, 0) (b) (0, 0, 75 cm) (c) (0, 0, 50 cm)
- How much energy is stored in a 2.60-cm-diameter, 12.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800 A?It is desired to construct a solenoid that will have a resistance of 5.60 N (at 20°C) and produce a magnetic field of 4.00 X 10¬2T at its center when it carries a current of 3.10 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 × 10-8 0· m.) (a) the number of turns of wire needed to build the solenoid 1029 v turns (b) the length the solenoid should have X cm 1.034*10**7It is desired to construct a solenoid that will have a resistance of 4.15 2 (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 5.00 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 x 10-8 0 • m.) (a) the number of turns of wire needed to build the solenoid turns (b) the length the solenoid should have cm