Solved Problems-Ch30 - Sources of Magnetic Field- new - Ch-30 Problems and Solutions Fall 2015 Phy201 Dr Hikmat A Hamad 1 Calculate the magnitude of the

# Solved Problems-Ch30 - Sources of Magnetic Field- new -...

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Ch-30 Problems and Solutions Page 1 Ch-30 Problems and Solutions- Fall 2015 Phy201 Dr. Hikmat A. Hamad 1. Calculate the magnitude of the magnetic field at a point 25.0 cm from a long, thin conductor carrying a current of 2.00 A. 2. (a) A conducting loop in the shape of a square of edge length, ℓ = 0.400 m carries a current I = 10.0 A as shown in Figure P30.5. (a) Calculate the magnitude and direction of the magnetic field at the center of the square. (b) What If? If this conductor is reshaped to form a circular loop and carries the same current, what is the value of the magnetic field at the center?
3. An infinitely long wire carrying a current I is bent at a right angle as shown in Figure P30.6. Determine the magnetic field at point P, located a distance x from the corner of the wire. 4. A conductor consists of a circular loop of radius R= 15.0 cm and two long, straight sections as shown in Figure P30.7. The wire lies in the plane of the paper and carries a current I = 1.00 A. Find the magnetic field at the center of the loop.
Ch-30 Problems and Solutions Page 3 5. In Figure P30.23, the current in the long, straight wire is I 1 = 5.00 A and the wire lies in the plane of the rectangular loop, which carries a current I 2 = 10.0 A. The dimensions in the figure are c = 0.100 m, a = 0.150 m, and , ℓ= 0.450 m. Find the magnitude and direction of the net force exerted on the loop by the magnetic field created by the wire.
Ch-30 Problems and Solutions Page 4 6. Four long, parallel conductors carry equal currents of I =5.00 A. Figure P30.32 is an end view of the conductors. The current direction is into the page at points A and B and out of the page at points C and D. Calculate (a) the magnitude and (b) the direction of the magnetic field at point P, located at the center of the square of edge length , ℓ = 0.200 m.

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• Spring '12
• Current, Magnetic Field, Dr. Hikmat A. Hamad

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