1011. The 200 turn, 15 cm square loop at right is located in a 20 mT magnetic field. The magnitude of the magnetic field is decreased over a period of 0.50 s. The bulb's resistance is 10 2
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- A 8.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.340 2. Pulling the wire at a steady speed of v= 4.00 m/s causes 4.30 W of power to be dissipated in the circuit. /myct/itemView?assignmentProblemID=195605... 34² F2 A 3 E D 80 F3 $ 4 R F a F4 V % L 5 T 0 F5 A 6 B Part A How big is the pulling force? Express your answer with the appropriate units. ► View Available Hint(s) F= Part B Y Submit FO Submit Provide Feedback B = Value What is the strength of the magnetic field? Express your answer with the appropriate units. ► View Available Hint(s) H Value & 7 μÀ μÅ ← F7 N U 3 8 J C FO ? Units Units DII FB 1 M PwC ? 10. 9 K D F9 O 30 a F10 L P 4 F11 + F12QUESTION 1 A coil of ten turns of area 0.01 m2 and resistance 5 Q is placed perpendicularly inside a magnetic field whose intensity and direction changes as given in the figure. What is the magnitude of the flux of magnetic field crossing the area of the coil at time = 6 sec? B(T) 0.1 0.3 0.5 0.8 0.9 t(s) -1 -2 O 2 Wb O 0.2 Wb O 20 Wb O 0.02 Wb O none of theseThe figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.2002, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let = 1.20 m. xxxxxx x xxxxxx xxxxxx xxxxxx xxx x xxxxxx xxxxxx x x x x x x x xxx app (a) Calculate the applied force required to move the bar to the right at a constant speed of 1.90 m/s. 3.338709 XN (to the right) (b) At what rate is energy delivered to the resistor? 7.679 XW
- Question 2: The figure below shows a 10cm x 10cm square bent at a 90° angle. A uniform 0.050 T magnetic field points downward at a 45° angle. What is the magnetic flux through the loop? 45% 5 cm B 5 cm 10 cmc. What is the resistance of the coil given that the diameter of the wire is 2.00 mm? (Recall, resistance of wire is given by R = ρL/A, where ρ is the resistivity of the metal, L is the length of the wire, and A is the cross-sectional area.)A 20 turn circular loop with diameter 3 cm is placed in a magnetic field of strength 7 T such that the loop’s area vector is parallel to the magnetic field. The magnetic field is reduced to 0 T over some time and this generates a constant voltage of 5 V. How long did it take for the magnetic field to reduce to 0? 3.23 s 15.32 s 0.0198 s 0.0389 s None of the above
- A stationary square coil of area 0.1 m2 is brought over time of 2 s into the magnetic field 8.8 T with its plane perpendicular to the magnetic field. The coil has 1317 turns. Calculate the magnetic flux linkage through the coil. Give your answer in Sl units. Answer: Choose... +3. A 21.0 cm diameter coil consists of 34 turns of cylindrical copper wire 2.80 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 8.50 × 10−³ T/s. Determine the current in the loop in milli-amps (the resistivity for copper is 1.72 × 10-³2.m). mAA 100-turn square wire coil of area 0.040 m² rotates about a vertical axis at 1,470 rev/min, as indicated in the figure below. The horizontal component of Earth's magnetic field at the location of the loop is 2.0 x 10-5 T. Calculate the maximum emf (in V) induced in the coil by Earth's field. V 20.0 cm 20.0 cm