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* To measure a magnetic field produced by an
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Chapter 21 Solutions
EBK COLLEGE PHYSICS
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- In the figure below, a 30.0 cm x 60.0 cm rectangular circuit containing a 18.10 resistor is perpendicular to a uniform magnetic field that starts out at 0.50 T and steadily increases to 2.11 T in 5.5 seconds. While this field is changing, what does the ammeter read (in mA)? Normal format with 3 SF. X X B 30.0 cm -60.0 cm- QUESTION 6 A R Following the previous question, the induced current running in the circuit is O A. counterclockwise O B. clockwisearrow_forwardA potential difference of 0.055 V is developed across the 10-cm-long wire of (Figure 1) as it moves through a magnetic field perpendicular to the plane of the figure. Figure 10 cm 5.0 m/s |+++ 1 of 1 Part A What is the strength of the magnetic field? Express your answer with the appropriate units. B = Submit Part B Value μÀ O to the right Request Answer What is the direction of the magnetic field? Submit out of the page to the left O into the page Provide Feedback Request Answer B Units ?arrow_forwardAn electron moves at right angles to a magnetic field of 0.23 T. Part A What is its speed if the force exerted on it is 9.1x10-15 N? Express your answer using two significant figures. IVO ADC ? v = m/sarrow_forward
- Item 1 The lightbulb in the circuit shown in the figure(Figure 1) has a resistance of 102 and consumes 9.7 W of power; the rod is 1.17 m long and moves to the left with a constant speed. The strength of the magnetic field is 2.3 T. Figure R O, O O O O O O O external magnetic 1 of 1 Part A Find the current in the circuit. Express your answer using two significant figures. ▸ View Available Hint(s) VE ΑΣΦΑ I = Submit Part B Find the speed of the rod. Express your answer using two significant figures. ► View Available Hint(s) 17| ΑΣΦ V = Submit Provide Feedback 2 ? ? A m/sarrow_forwardAn electron travels with speed 1.3×107 m/s between the two parallel charged plates shown in the figure. The plates are separated by 1.0 cm and are charged by a 200 V battery. Part A What magnetic field strength will allow the electron to pass between the plates without being deflected?Express your answer in tesla. Part B What is the direction of the magnetic field?A UpB DownC Out of the pageD Into the pagearrow_forwardIn a physics laboratory experiment, a coil with 230 turns enclosing an area of 10 cm? is rotated in a time interval of 0.050 s from a position where its plane is perpendicular to the earth's magnetic field to a position where its plane is parallel to the field. The earth's magnetic field at the lab location is 6.0x10-5 T. Part A What is the magnetic flux through each turn of the coil before it is rotated? Express your answer with the appropriate units. ? Value Units Part B What is the magnetic flux through each turn of the coil after it is rotated? Express your answer with the appropriate units. ? 2 = Value Unitsarrow_forward
- The coil in a loudspeaker has 40 turns and a radius of 4.2 cm. The magnetic field is perpendicular to the wires in the coil and has a magnitude of 0.36 T. Part A If the current in the coil is 260 mA, what is the total force on the coil? Express your answer to two significant figures and include appropriate units. 99 Submit μA N SWIC ? Previous Answers Request Answer * Incorrect; Try Again; 29 attempts remainingarrow_forwardConsider the velocity selector diagrammed below. If the charged particle ejected by the heated filament passes through the capacitor plates undeflected with a speed of 2.0 x 105 m/s,what is the magnetic field strength if the electric field strength is 800 volts/m? a. 2.0 mT b. 0.00 mT c. 6.0 mT d. 8.0 mT e. 4.0 mTarrow_forwardYou have learned that a charge moving in an magnetic field can experience a magnetic force. Remarkably, anytime that a charged particle moves that particle produces its own magnetic field! The image below of magnetic compasses forming a circle around a current-carrying wire demonstrates the shape of the magnetic field. The magnetic field lines forms concentric circles around that wire. The strength of the field decreases with increasing distance away from the wire. If the current in the wire is 1.15A, what is the magnitude of the magnitude of the magnetic field (in ?μT, or micro-Tesla) a distance of 0.88m away from the wire?arrow_forward
- The loop in the figure is being pushed into the 0.60 T magnetic field at 25 m/s. The resistance of the loop is 0.50 2. (Figure 1) You may want to review (Pages 849 - 851). Part A What is the magnitude of the current in the loop? Express your answer with the appropriate units. Value Submit Part B Request Answer Units clockwise What is the direction of the current in the loop? O counterclockwise ? Submit Request Answerarrow_forwardYou have learned that a charge moving in an magnetic field can experience a magnetic force. Remarkably, anytime that a charged particle moves that particle produces its own magnetic field! The image below of magnetic compasses forming a circle around a current-carrying wire demonstrates the shape of the magnetic field. The magnetic field lines forms concentric circles around that wire. The strength of the field decreases with increasing distance away from the wire. If the current in the wire is 1.97A, what is the magnitude of the magnitude of the magnetic field (in µT, or micro-Tesla) a distance of 0.74m away from the wire? Note: It is understood that the unit of your answer is in uT, however do not explicitly include units in your answer. Enter only a number. If you do enter a unit, your answer will be counted wrong.arrow_forwardWhich of the following statements are correct about different unit combinations? There is more than one correct answer; points are deducted for wrong answers. A The units for thermal energy are the same as those for kinetic energy. B The force due to gravity is measured in different units than the electrostatic force. C Joules is the same as Coulombs times Volts. D Magnetic field can be measured in Volts per meter, E Kinetic energy uses different units than other forms of energy. F The units for force times distance ("Work") are the same as the units for momentum. G The units for momentum times units for velocity some out the same as units for electrical energy. H Ohms are equivalent to Watts per {Ampere squared}. I Momentum has the same untis as speed.arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
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