Q.4. (a) A uniform magnetic field B is perpendicular to the plane of a circular loop of diameter 10 cm formed from wire of diameter 2.5 mm and resistivity 1.69 x 10"Q.m. At what rate must the magnitude of B change to induce a 10 A current in the loop?
Q: A long copper strip 1.8cm wide and 1.0mm thick is placed in a 1.2T magnetic field. When a steady…
A: Given: w =1.8 cm =1.8*10-2 mt = 1.0 mm =1.0 *10-3 mB=1.2 TI=15 A∆V=1.02 μV=1.02*10-6 V
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A: The maximum force on the wire when it is placed between pole faces of magnet, is The current is…
Q: the currents are in guration (panel b), parallel to each othe tho forco for each
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Q: What speed would a proton need to achieve in order to circle Earth 1200 km above the magnetic…
A: distance of proton above equator (d) = 1200 km Magnetic field (B) = 4.22×10-8 T mass of proton (m) =…
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Q: d d I I xp Two wires are separated by distance d = 0.0356 m, and carry equal currents of 3.5 A in…
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Q: The magnetic field inside an air-filled solenoid 40.0 cm long and 3.00 cm in diameter is 0.535 T .…
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Q: Find the flux of Earth's magnetic field of magnitude 5.00 x 10-5 T through a square loop of area…
A: Answer:- Given Magnitude of magnetic field(B) = 5.00 × 10-5 T Area = 40.0 cm2 = 40.0 × 10-4 m2…
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A: Length of rod= 0.4 m Counterclock angular speed= 2 rad/s Magnetic Field = 7.5 T
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A: The induced emf in the loop is given by E=dϕdt=dB×Areadt=Area×dBdt
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- 3 m ol B. Currents I,=7.0 A and Iz run perpendicular to the x-y plane in long straight wires as shown in the figure. If the net magnetic field at the origin is in the direction shown and 0= 37. Find the value of I (in A). 1, 7.5 2. 10.5A piece of copper wire has a resistance per unit length of 8.70 x 10 o/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.146 m. The ends of the wire are connected to a 12.0-V battery. Find the magnetic field strength at the center of the coil. Number UnitsA 18.4-cm-diameter coil consists of 20 turns of circular copper wire 9.96 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 3.506E-3 T/s. Determine the current in the loop, in A.
- Suppose you wish to produce a 2-T magnetic field in a toroid with an iron core for which magnetic susceptibility is x=3 x 10³. The toroid has a mean radius of 18 cm and is wound with 600 turns. Hint с a. What current is required to produce this magnetic field in the iron core? Current of A is needed. b. For comparison, what current is required to produce the same magnetic field in an air-filled toroid of same geometry? Current of While it is not always practical to have region of magnetic field filled with ferromagnetic materials, this dramatic increase in strength of magnetic field produced is useful in some applications you will see in upcoming chapters. Submit Question 4 A is needed for toroid with no iron core. % Search or type URL 5 MacBook Pro < 6 A 6 7 * 8 ( 9A circular piece of wire with radius 0.89 m has a 84.9 T magnetic field passing through. What is the maximum magnetic flux that can pass through this ring?A strip of copper is placed in a uniform magnetic field of magnitude 3.5 T. The Hall electric field is measured to be 2.0 x 10-3 V/m. (a) What is the drift speed of the conduction electrons m/s)? m/s (b) Assuming that n = 8.0 x 1028 electrons per cubic meter and that the cross-sectional area of the strip is 4.4 x 10-6 m², calculate the current in the strip (in A). (in m³/C)? nq (c) What is the Hall coefficient m3/c
- The magnetic field inside an air-filled solenoid 37 cm long and 2.1 cm in diameter is 0.75 T. Approximately how much energy is stored in this field?The force on a wire is a maximum of 4.38 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. If the pole faces have a diameter of 12.9 cm, estimate the current in the wire if the field is 0.184 T. If the wire is tipped so that it now makes an angle of 15.1° with the horizontal, what force will it now feel?A 2.60N metal bar, 1.50 m long and having a resistance of 10 ohms, rests horizontally on conducting wires connecting it to the circuit. The bar is in a uniform magnetic field B = 1.6 T and is not attached to the wires in the circuit. What is the acceleration of the bar just after the 25.0 2 xS x switch is closed? 10.0 N3 X. 120.0 V