alculate the magnetic flux Φ in Wb through the coil from0.75 A DC.

Design a 2 cm long “air cored” rod type inductor to have8 µF to within 5%.(b) (1 mark) Calculate the magnetic flux Φ in Wb through the coil from0.75 A DC

A coil has 170 turns enclosing an area of 14.0 cm2cm2 . In a physics laboratory experiment, the coil is rotated during the time interval 0.044 ss  from a position in which the plane of each turn is perpendicular to Earth's magnetic field to one in which the plane of each turn is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.50×10−5 TT .Part APart completeWhat is the magnitude |Φinitial||Φinitial| of the magnetic flux through one turn of the coil before it is rotated?Express your answer in webers.View Available Hint(s)for Part A|Φinitial||Φinitial| =9.10×10−8 WbWb SubmitPrevious Answers CorrectPart BWhat is the magnitude |Φfinal||Φfinal|  of the magnetic flux through one turn of the coil after it is rotated?

1. (4 marks)(a) (2 marks) Design a 2 cm long “air cored” rod type inductor to have8 µF to within 5%.(b) (1 mark) Calculate the magnetic flux Φ in Wb through the coil from0.75 A DC.(c) (1 mark) The inductor is connected in series to a 75 Ω resistor. Calculatethe impedance at 95 MHz (about the frequency of FM radio).2. (2 marks) Sketch a diagram of a magnetically susceptible material such asiron placed within a magnetic field. Sketch the M-field and resultant B-field.3. (2 marks) Starting from Ampere’s circuital law, find the B field, total flux,and inductance of coaxial cable between the conductor and the shielding.4. A iron rod of finite length with relative permeability µr = 5000 is placedwithin a magnetic field. In the centre of the rod the magnetic field increasesabout 2000 times, but at the edge we measure an increase in B of about 200times.(a) (1 mark) Why do we not measure an increase in the B-field of 5000times?(b) (1 mark) Under what circumstances (theoretical or practical) might wemeasure an increase of 5000 times in the B-field?

n a coil of resistance 100  a current is induced by changing the magneticflux through it. The variation of current with time is as shown in the figure. Themagnitude of change in flux through coil is(a) 200 Wb (b) 275 Wb (c) 225 Wb (d) 250 Wb

A magnetic circuit shown in Fig. 5 has an iron core with a relative permeability of 1000and a 500 turn coil wound on the iron core. Find the current i in the exciting coilrequired to establish a flux of 100µWb in the air gap