![(a) A solenoid is of length L and has n turns. i.Write the expression for the magnetic flux density B within the solenoid ii. State, in terms of B, the magnetic flux density at the ends of the solenoid. when the current in the solenoid is 2 marks] Two long straight wires are separated by a distance R. Both wires carry the same current / but in opposite direction. Point P is located midway between the two wires. What is the magnetic field strength at P? (b) 15 marks Two long parallel straight wires X and Y are placed d m apart in a vacuum. The current flowing in wires X and Y are / and 3/ respectively and the force per unit length on each wire is k N m. The current flowing in the wires X and Y are then increased to 2/ and 4/ respectively. What is the distance between the wires so that the force per unit length is 3k N m1? (c) 13 marksl](http://img.homeworklib.com/questions/53cbb710-71d3-11ea-8cb6-e1482845e716.png?x-oss-process=image/resize,w_560)
Homework Answers
Summary of problem:-Part(a)(i) & (ii)are simply the formula for magnetic field inside and at the ends of a solenoid.
Part(b) is related to the field near a long current carrying conductor.
Part(c) is based upon the magnetic force between two long current carrying conductors.
The complete solution is in the pics below-
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(a) A solenoid is of length L and has n...
Help me solve this question asap (a) A solenoid is of length L and has n...
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(a) A solenoid is of length L and has n turns. i. Write the expression for the magnetic flux density B within the solenoid 11. State, in terms of B, the magnetic flux density at the ends of the solenoid when the current in the solenoid is 1 [2 marks] (b) Two long straight wires are separated by a distance R. Both wires carry the same current / but in opposite direction. Point P...
Help me solve this question asap Two long straight wires are separated by a distance R....
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Two long straight wires are separated by a distance R. Both wires carry the same current / but in opposite direction. Point P is located midway between the two wires. What is the magnetic field strength at P? [5 marks]
Help me solve this question asap 9. a) Define a current of magnitude 1 A. b)...
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9. a) Define a current of magnitude 1 A. b) 6 A 10 A FIGURE 4.3 Two long straight parallel copper wires X and Y are placed at a distance r apart in FIGURE 4.3. X carries current of 6 A and Y carries current of 10 A in the opposite direction. (i) Find the location of a point from wire X, in term of r, where the resultant magnetic field will be zero....
Help me solve this question asap Two long parallel wires, P and Q are fixed on...
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Two long parallel wires, P and Q are fixed on a horizontal plane north-south direction. Wire P is 10 cm left of wire Q. Wire P carries 40 A current northwards (a) while wire Q carries 20 A current southwards. Determine the magnitude and direction of i. the resultant magnetic field at midpoint between the wires. the resultant magnetic field at a point on the horizontal plane, 8.0 cm from the wire P and...
Question 3 A long solenoid with n turns per unit length of current I is wrapped around a cylindri...
Question 3 A long solenoid with n turns per unit length of current I is wrapped around a cylindrical magnetic core of permeability μ μ0Hm The cylindrical core, extending along the z-axis, has radius α n turns per unit length, current I per turn Magnetic material of μ (a) If the solenoid is considered as infinite in length, it can be shown that the magnetic field, expressed in cylindrical coordinates, is: r> a Apply Ampere's law, using the rectangular path...
TA) Q4: Time (30 minutes) A. The current flowing in a solenoid, of 400 turns, 20...
TA) Q4: Time (30 minutes) A. The current flowing in a solenoid, of 400 turns, 20 cm length & 4 cm diameter, changes with time according to the graph show to right. Derive an expression for the strength of the induced electric field inside the solenoid 0 00 01 02 03 04 Sketch the corresponding graph showing how the induced electric field vary with time. B. The Figure to right shows an infinite straight wire carries a current I is...
6. A very long solenoid has a density of coils n turns per unit length. We apply a current I through the solenoid. Use Biot-Savart law to derive the magnetic field in the center of the the solenoid....
6. A very long solenoid has a density of coils n turns per unit length. We apply a current I through the solenoid. Use Biot-Savart law to derive the magnetic field in the center of the the solenoid. Verify that it agrees with the result from the Ampere's law. You can approximate the solenoid as infinitely long
6. A very long solenoid has a density of coils n turns per unit length. We apply a current I through the solenoid....
2. A solengid has n turns per unit length. The radius of solenoid is R. A...
2. A solengid has n turns per unit length. The radius of solenoid is R. A circular loop of wire with 10 turns and radius r<R lies along the axis of the solenoid near the middle of its length. If the current ie he circular loop is I, find the magnetic flux through the solenoid. 3. Two tiny wire loops with areas ar and az are situated a distance r apart. Find their mutual inductance,
Help me solve this question asap 3 (a) Awire with a mass of 64 g and...
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3 (a) Awire with a mass of 64 g and I m long floats horizontally in magnetic field. If B- 1.6x 10-2 T is at the direction perpendicular to the wire, current in the wire 12 marks] Me'. : xXxx FIGURE 2 FIGURE 2 shows two particles M and N with charge +e and -e respectively enter a uniform magnetic field B-0.8 T with the same velocity v 1.5 x 10° ms i. Copy...
A solenoid of length L=30.4cm and radius R=3.5cm , has turns density n=1340 (number of turns...
A solenoid of length L=30.4cm and radius R=3.5cm , has turns density n=1340 (number of turns per meter). The solenoid carries a current I=19.5 Amper. Calculate the magnetic field on the solenoid axis, at a distance l=14.8cm from one of the edges of the solenoid. ?7m
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(a) A solenoid is of length L and has n turns. i. Write the expression for the magnetic flux density B within the solenoid 11. State, in terms of B, the magnetic flux density at the ends of the solenoid when the current in the solenoid is 1 [2 marks] (b) Two long straight wires are separated by a distance R. Both wires carry the same current / but in opposite direction. Point P...
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Two long straight wires are separated by a distance R. Both wires carry the same current / but in opposite direction. Point P is located midway between the two wires. What is the magnetic field strength at P? [5 marks]
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9. a) Define a current of magnitude 1 A. b) 6 A 10 A FIGURE 4.3 Two long straight parallel copper wires X and Y are placed at a distance r apart in FIGURE 4.3. X carries current of 6 A and Y carries current of 10 A in the opposite direction. (i) Find the location of a point from wire X, in term of r, where the resultant magnetic field will be zero....
Help me solve this question asap
Two long parallel wires, P and Q are fixed on a horizontal plane north-south direction. Wire P is 10 cm left of wire Q. Wire P carries 40 A current northwards (a) while wire Q carries 20 A current southwards. Determine the magnitude and direction of i. the resultant magnetic field at midpoint between the wires. the resultant magnetic field at a point on the horizontal plane, 8.0 cm from the wire P and...
Question 3 A long solenoid with n turns per unit length of current I is wrapped around a cylindrical magnetic core of permeability μ μ0Hm The cylindrical core, extending along the z-axis, has radius α n turns per unit length, current I per turn Magnetic material of μ (a) If the solenoid is considered as infinite in length, it can be shown that the magnetic field, expressed in cylindrical coordinates, is: r> a Apply Ampere's law, using the rectangular path...
TA) Q4: Time (30 minutes) A. The current flowing in a solenoid, of 400 turns, 20 cm length & 4 cm diameter, changes with time according to the graph show to right. Derive an expression for the strength of the induced electric field inside the solenoid 0 00 01 02 03 04 Sketch the corresponding graph showing how the induced electric field vary with time. B. The Figure to right shows an infinite straight wire carries a current I is...
6. A very long solenoid has a density of coils n turns per unit length. We apply a current I through the solenoid. Use Biot-Savart law to derive the magnetic field in the center of the the solenoid. Verify that it agrees with the result from the Ampere's law. You can approximate the solenoid as infinitely long
6. A very long solenoid has a density of coils n turns per unit length. We apply a current I through the solenoid....
2. A solengid has n turns per unit length. The radius of solenoid is R. A circular loop of wire with 10 turns and radius r<R lies along the axis of the solenoid near the middle of its length. If the current ie he circular loop is I, find the magnetic flux through the solenoid. 3. Two tiny wire loops with areas ar and az are situated a distance r apart. Find their mutual inductance,
Help me solve this question asap
3 (a) Awire with a mass of 64 g and I m long floats horizontally in magnetic field. If B- 1.6x 10-2 T is at the direction perpendicular to the wire, current in the wire 12 marks] Me'. : xXxx FIGURE 2 FIGURE 2 shows two particles M and N with charge +e and -e respectively enter a uniform magnetic field B-0.8 T with the same velocity v 1.5 x 10° ms i. Copy...
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