(30i – 41.6j) ) mT. What is the r wire? 0.90 N along the - z-axis
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- A long straight wire with circular cross section and radius Rcarries current with density J= Br where B is a constant. If the magnetic field at a point inside the wire is find the distance (T) of the point to the center of wire. 15 %3D a. T= b. T= C. T = d. T= e. T= O f. T= O h. T= 居是是 互3卫正 示A long solenoid has a radius of 4 cm and has 800 turns/m. If the current in the solenoid is increasing at the rate of 21.4 A/s, what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid? a. 192.60 µV/m b. 321.00 µV/m O c. 781.10 µV/m d. 1719.70 μν /m e. 236.47 µV/mA circular loop with a radius of 2.5 m rests horizontally inside a uniform magnetic field of 0.9 T in a down direction. What is the induced emf when the magnetic field drops to zero in 0.75 s? O a. 9.40 V O b. 23.6 V O c. 34.2 V O d. 17.5 V
- 5. An AC appliance cord has its hot and neutral wires separated by 3.35 mm and carries a root mean squared current of 4.10 A. What is the average force per meter (in N/m) between the wires in the cord? (Enter the magnitude.) N/m What is the maximum force per meter (in N/m) between the wires? (Enter the magnitude.) N/m Are the forces attractive or repulsive? Do appliance cords need any special design features to compensate for these forces?LTE ll 53% A 11:34 AM Mid Term Paper Applied . . Time left 00:10:36 Not yet answered Question 15 Marked out of 1.00 The current density in case when 5 ampere of current passes through a conductor having cross-section area of 2m² is Select one: a. 10 Am² b. 7 Am2 c. 2.5 Am2 d. 2.5 A1 m? CLEAR MY CHOICE IIQ3: In a certain region, J = 3r? cos 0 ar - r? sin 0 ae A/m, find the current crossing the surface defined by 0 = 30°, 0 <0 < 2n, 0 < r<2 m. %3D
- A long solenoid has a radius of 4.0 cm and has 800 turns/m. If the current in the solenoid is increasing at the rate of 3.0 A/s, what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid? a. 3.9 ´ 10-5 V/m b. 3.3 ´ 10-5 V/m c. 4.2 ´ 10-5 V/m d. 3.6 ´ 10-5 V/m e. 6.0 ´ 10-5 V/m1) Two VERY LONG wires are placed along parallel lines as shown below in the picture. The wire ON THE LEFT (at Xr= 0, Z1 %30) has a current-going in the direction shown of value, In = 4.00 A The current on the RIGHT (at X2= d, Zz-0) has a current going in the direction shown of value, I2 = 6.00 A. The point "P* is at the location (x-6.00cm, z-10 4cm) Wire 1 Wire 2 c) Find the magnitude and direction of the MagneticField due to wire 1 at the location of wire 2 (Show all your work) () 6 66 µT + (1) 6 66 uT + (1) 999 pT + (v) 999 pT +Two current-carrying conductors are parallel to one another. The first wire has a current of 36 A flowing in the southern direction while the other wire has a 60-A current flowing in northern direction. The conductors are 0.009 m apart. What kind of force exists between the two wires? A. Attractive B. Repulsive C. Either attractive or repulsive D. Neither attractive nor repulsive E: Other: __________