Part C A circular conducting loop is placed in a magnetic field that is changing at a constant rate of 0.065 T/s. If the induced emf in the loop is 60.0 μV, what is the minimum possible area of the loop? Express your answer with the appropriate units. Amin Value Units ?
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- Problem 28.15 ▼ A long pair of insulated wires serves to conduct 27.5 A of dc current to and from an instrument. A third wire is placed in the plane of the two wires shown in the figure parallel and just to the right. Part A Fear Incar If it carries 24.2 A upward, what force per meter of length does it exert on each of the other two wires? Assume it is 2.8 mm from the nearest wire, center to center. Express your answer to two significant figures and include the appropriate units. Submit ▾ Part B Flor lfar Submit HA Provide Feedback Value Request Answer 1 Express your answer to two significant figures and include the appropriate units. HA Value Request Answer www Units ? Units SOME ? Constants | Periodic Table 4 of 5 2.8 mm Next >y Here, a long solenoid of 20000 turns/meter and r=2 cm is oriented along the z-axis (outer circle). There is a small coil of 10 loops of wire of radius 1 cm concentric with the solenoid and lying in the x-y plane (inner circle). An alternating current of magnitude 10 A switches direction every 0.001 seconds in the solenoid. What is the magnitude of the EMF generated in the small loop, in Volts? Answer:ASAP
- In each of the diagrams shown below, indicate the direction of the magnetic force on the wire. B B B BB4The magnetic field perpendicular to a single 17.2- cm -diameter circular loop of copper wire decreases uniformly from 0.750 T to zero. Part A If the wire is 2.75 mm in diameter, how much charge moves past a point in the coil during this operation? The resistivity of copper is 1.68 ×10−8Ω⋅m .
- A generator consists of a 15-cm by 12-cm rectangular loop with 500 turns of wire spinning at 60 Hz in a 25 mT uniform magnetic field. The generator output is connected to a series RC circuit consisting of a 180 a 35 μF capacitor. resistor and Part A What is the average power delivered to the circuit? Express your answer with the appropriate units. ▸ View Available Hint(s) ? Pavg = Value UnitsMicrophones are used to convert sound vibrations to electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a diameter of 1.6 cm and has 100 turns; the 0.010 T magnetic field points radially out from the north pole to the south. Figure S N Wire coil 1 of 1 Part A If the microphone's emf at some instant is 10 mV, what is the speed of the coil? Express your answer with the appropriate units. V = Value Submit μà Provide Feedback Request Answer Units www ?(Figure 1) shows a circuit with an area of 0.070 m² containing a R = 1.0 N resistor and a C = 230 µF uncharged capacitor. Pointing into the plane of the circuit is a uniform magnetic field of magnitude 0.11 T. In 1.0 × 10-2 s the magnetic field strengthens at a constant rate to become 0.80 T pointing into the plane. Part A What maximum charge (sign and magnitude) accumulates on the upper plate of the capacitor in the diagram? Express your answer to two significant figures and include appropriate units. µA ? Value Units Submit Request Answer Provide Feedback Figure 1 of 1 R
- The figure below shows a flexible loop of metal wire with a radius of 15.0 cm. It lies in a magnetic field pointing into the page with a magnitude of 0.140 T. A physicist grabs the loop at points A and B and rapidly pulls in opposite directions until the loop folds up, such that its area becomes zero. The change in area occurs in a span of 0.190 s. A What is the average induced emf (in mV) in the loop over this time span? mvPlease solve this question! The answer is NOT 39.1 watt!!A shunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208 n. The resistance of the rotor, R. is 4.90 n. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part A Compute the field current Ir. Express your answer in amperes. • View Available Hint(s) Temglates Symbols undo regdo Tesel keyboard shortcuts Help A I = 0.56 Submit Prevlous Anewere X Incorrect, Try Again; 4 attempts remaining Part B Compute the rotor current I > View Available Hint(s) Figure 1 of 1 Templates Symbols undo redo Teset keyboard shortcuts Help A. I = 4,26 Submit Prevlous Answers X Incorrect; Try Again; 5 attempts remaining R ER. Part C Compute the emf E.