College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- O Resources R Give Up? O Feedback The component of the external magnetic field along the central axis of a 125 turn circular coil of radius 16.0 cm decreases from 2.40 T to 0.250 T in 3.10 s. If the resistance of the coil is R = 4.50 2, what is the magnitude of the induced current in the coil? magnitude: Incorrect What is the direction of the current if the axial component of the field points away from the viewer? O counter-clockwise O clockwisearrow_forwardA circular coil lies flat on a horizontal table. A magnet bar is held above the table. There will be an induced current in the coil if (select ALL that apply): A the magnet is held fixed and the radius of the coil in decreased. B the magnet is moved away from the table, with the south pole facing the table. the magnet is held fixed and the radius of the coil in increased. the magnet is dropped with the north pole facing the table. E the magnet is moved away from the table, with the north pole facing the table. F the magnet is held fixed. G the magnet is dropped with the south pole facing the table. H) the magnet is held fixed and the coil is rotated while laying flat on the table.arrow_forwardPlease help me with the given question nd make sure its 100% correct, thank you A 24.0 μF capacitor is charged to 195 μC and then connected across the ends of a 4.80 mH inductor. Part A. Find the maximum current in the inductor. Express your answer with the appropriate units. Part B. Find the maximum energy stored in the inductor. Express your answer with the appropriate units. Part C. At the instant the energy stored in the inductor is maximum, what is the current in the circuit? Express your answer with the appropriate units.arrow_forward
- In the image below, two conducting rings are in the same plane. The outer ring contains a resistor R, while the inner ring has a clockwise current /that is increasing in magnitude. You may assume that the magnetic field that is generated by the inner ring is negligible outside the ring. The induced current through R R. O goes from b to a O goes from a to b. O doesnt' exist. There is no induced current through R.arrow_forwardenergy stored in inductorarrow_forwardIn the figure, a 110-turn coil of radius 3.2 cm and resistance 7.7 Q is coaxial with a solenoid of 260 turns/cm and diameter 4.6 cm. The solenoid current drops from 2.1 A to zero in time interval At = 32 ms. What current is induced in amperes in the coil during At? Coil Solenoid Number i Units >arrow_forward
- A 405 pFcapacitor is charged to 185 V and then quickly connected to a 195 mH inductor. Determine the frequency of oscillation. Determine the peak value of the current. Determine the maximum energy stored in the magnetic field of the inductor.arrow_forwardMeasurements on a solenoid coil (inductor) at a particular instant in time indicate that the current in the inductor is 2.7 A and changing at 0.4 A/s, while the emf generated across the coil is 1.6 V. A) What is the inductance L of the coil? B) If the body of the coil is 1 inch long and ¼ inch in diameter, how many turns are there in the coil?arrow_forwardPart A) Determine the energy stored in the inductor L as a function of time for the LR circuit of the figure.Express your answer in terms of the variables L, t, R, V0, and appropriate constants. U=? Part B) After how many time constants does the stored energy reach 99.9%% of its maximum value? Express your answer using two significant figures.arrow_forward
- An inductor with L = 2.5 H is in a closed circuit with I= 0.45 A (see the diagram). When the switch is opened, the current goes to zero in At = 0.18 s. L = 2.5 H I= 0.45 A At = 0.18 s (a) Express the magnitude of the average induced emf on the inductor, &are, in terms of L, I and At. Iarrow_forwardA wire loop moves translationally (no rotation) in a uniform magnetic field. Is there an emf induced in the loop?arrow_forwardYour answer is partially correct. In the figure, a 100-turn coil of radius 3.0 cm and resistance 5.0 Q is coaxial with a solenoid of 200 turns/cm and diameter 4.0 cm. The solenoid current drops from 1.7 A to zero in time interval At = 21 ms. What current is induced in amperes in the coil during At? Coil Solenoid ▬▬▬▬▬ Number i 0.127 A Unitsarrow_forward
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