Below is a simplified diagram of a generator, looking at it head-on. The coil is rotating clockwise. (a) At what position is it cutting the field lines fastest? (b) At what position is its vertical velocity zero? (c) Why is no current induced when the coil is vertical?
Q: Question 3: Induction (a) The rod shown below moves to the right on essentially zero-resistance…
A:
Q: Shown in the following figure is a long, straight wire and a single-turn rectangular loop, both of…
A:
Q: As shown is a graph of the induced emf versus time for a coil of N turns rotating with angular speed…
A: (a) According to Faraday’s law of electromagnetic induction, if there is a change in magnetic flux…
Q: The figure below shows a circular conducting loop moving toward a wire carrying a current to the…
A:
Q: If the change in magnetic field is 0.3T in 0.2s as shadow walks through the coils, does the trap…
A: The current induced in the coil can found by Ohm’s law as, Here, ε, i, and R represent the induced…
Q: Describe the origin of the induced emf in a stationary coil placed in magnetic file that changes…
A: Introduction: The induced emf or electromotive force is a potential difference that can be generated…
Q: A 133-turn square wire coil with sides of length L = 18.4cm rotates about a vertical axis at…
A: Here given a 133 turn square wire coil with sides of length L = 18.4 cm. The vertical axis rotates…
Q: If an alternator coil is 13 cm in diameter and is spinning at 1150 revolutions per minute in a 0.13…
A: Using Faraday’s law, the emf induced is,
Q: A bar magnet is held stationary below a circular conducting loop. What is the direction of the…
A:
Q: ) If a student picks up the loop and moves it to a bench on the other side of the room, what emf…
A:
Q: For a conducting rod of U-shaped metal wire of length, I = 30m is connected to a lightbulb having a…
A:
Q: The north pole of a magnet is at a set distance from a copper loop which is rotating as shown below.…
A: According to Lenz’s law, the direction of the induced magnetic field is such that it always opposes…
Q: A flat coil enclosing an area of 0.19 m2 is rotating at 55 rev/s, with its axis of rotation…
A:
Q: (b) According to Lenz's Law, in which direction will an induced current in the loop travel? How do…
A:
Q: The flexible loop in the figure below has a radius of 13 cm and is in a magnetic field of strength…
A: Given that radius of the flexible loop and strength of magnetic field and time takes to close the…
Q: You have a coil of wire with 14 turns each of 1.5 cm radius. You place the plane of the coil…
A: given data turns = 14 radius = 1.5 cm field = 0.44 t = 2.4 sec magnitude of the average induced…
Q: Rectangular Coil A rectangular coil with 6000 tums that has a resistance of 2.102 is coplanar with a…
A:
Q: Tthe length of a moving conductor L=0.25m (you may assume that this is the distance from “rail to…
A: Given that:- Length of moving conductor=L=0.25m
Q: A person who works with large magnets sometimes places her head inside a strong field. She reports…
A:
Q: The graph below shows the magnitude B of a uniform magnetic field that is perpendicular to the plane…
A:
Q: (a) Define self and mutual induction. Give practical examples of both inductions. (b) A circular…
A:
Q: The space to the right of the y axis in (Figure 1) contains a uniform magnetic field of unknown…
A:
Q: One simple, though impractical, way to generate electrical power is shown below. A bar of metal with…
A: Length of the rod = L = 15 cm velocity = v = 0.4 m/s Magnetic field = B = 0.75 T Angle between v and…
Q: A 500-turn coil of area 0.00200 m^2 is rotated in a 2.00 T magnetic field. At what frequency, f,…
A: When coil rotated in a magnetic field, Flux linked with the coil at time 't' ; a) ϕ=NBA cosωt…
Q: What is the peak emf (in kV) generated by a 0.230 m radius, 520-turn coil that is rotated one-fourth…
A:
Q: A rectangular loop (area = 1.4 m²) turns in a uniform magnetic field, B = 1.3 T. When the angle…
A: Given Data:- Area of the loop is A=1.4 m2 Magnetic field is B=1.3 T Angle between the magnetic field…
Q: the emf of a coil rotating in a magnetic field is zero at t = 0 and increases to its first peak at t…
A:
Q: Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform…
A:
Q: The changes of magnetic flux passing through a loop in terms of time in induction are shown in the…
A:
Q: A wire loop moves translationally (no rotation) in a uniform magnetic field. Is there an emf induced…
A:
Below is a simplified diagram of a generator, looking at it head-on. The coil is rotating clockwise.
(a) At what position is it cutting the field lines fastest?
(b) At what position is its vertical velocity zero?
(c) Why is no current induced when the coil is vertical?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- The figure below is a graph of the induced emf versus time for a coil of N turns rotating with angular speed w in a uniform magnetic field directed perpendicular to the coil's axis of rotation. Copy thi sketch (on a larger scale), and on the same set of axes show the graph of emf versus t. On the same graph, plot the following changes and provide answers to the corresponding questions. & (mV) 10 -5 -10 V 2 3 t (ms) (a) The number of turns in the coil is doubled which causes the amplitude to ---Select--- (b) The angular speed is doubled which causes the amplitude to ---Select--- and the period to ---Select--- and the period to ---Result--- 0 (c) The angular speed is doubled while the number of turns in the coil is halved which causes the amplitude to ---Result--- and the period to ---Result--- GWhen you move a magnet through a 1 loop coil you detect a voltage of 0.001 volts, what voltage would you read if you move the same magnet at the same velocity through a coil with 1000 loops (assume the radius of the loops in the coil is the same as the one in the single loop wire)Shown in the following figure is a long, straight wire and a single-turn rectangular loop, both of which lie in the plane of the page. The wire is parallel to the long sides of the loop and is 0.5 m away from the closer side. At an instant when the voltage induced in the loop is 2.5 V, what is the time rate of change of the current in the wire? 0.50 m] 3.0 m 0.50 m a. What is the expression for magnetic field B due to the current I in the long, straight wire, at distance r away from the wire? B = . Give your answer in terms of given variables (I, r) and physical and numerical constants (o, T, ke, and/or c). Spell out Greek letters and use underscore ("_") for subscripts. b. Because the magnetic field is not uniform, you will have to use integration to calculate the magnetic flux, = = [₁ BdA. Find the magnetic flux through the loop as a function of I ( will be proportional to I, as shown below; find the coefficient, in base SI units). Hint for (b) Φ I. Give your answer in terms of given…
- Two coils are placed near each other as shown in the figure below. The coil on the left is connected to a battery and a switch, and the coil on the right is connected to a resistor. (i) What is the direction of the current in the resistor at an instant immediately after the switch is thrown closed? left right The current is zero. (ii) What is the direction of the current in the resistor after the switch has been closed for several seconds? left right The current is zero. (iii) What is the direction of the current in the resistor at an instant after the switch has then been thrown open? left right The current is zero.Induced EMF Below is a closed conducting loop within a magnetic field (for direction see picture). The loop is a circle with a radius of r = 5.00 cm. The magnetic field is decreasing in the direction shown at a rate of dB/dt = 157.0 mT/s. The circle wire has 305.0 loops around it. The wire has a total resistance of R = 2.80 Ohms. Magnetic Field (into the page) 8) What is the induced current around the wire in this system? (use a negative value for a clockwise current) Make sure to give your answer in an appropriate number of significant figures as well as including units with your answer. Your Answer: Answer units PLEASE TAKE OUT TRASH AT EOS IGA 40 turn conductive loop encloses an area of 0.55 m?. At what constant rate should the magnetic field directed perpendicular to the loop change with time if the induced emf is to be 4.25 Volts? Consider only positive numbers here in your answer.
- What is the direction of the induced emf in the circular loop below? wire is entering a constant magnetic field region (A) ▼ (B) radially outward (C) clockwise (D) counterclockwise (E) radially inwardThe current in a long solenoid of radius 6 cm and 22 turns/cm is varied with time at a rate of 3 A/s. A circular loop of wire of radius 8 cm and resistance 7 0 surrounds the solenoid. Find the electrical current induced in the loop (in HA). HAImagine that we have a rectangular loop of wire (with a total resistance of 1.6 ohms) placed in a magnetic field that dies off as: 0.3*e-10t T into the page. What is the induced current in the coil at 0.002 s? The loop has a length of 1.7 m and a width of 1.7 m.
- A 36 turn conductive loop encloses an area of 0.69 m2. At what constant rate should the magnetic field directed perpendicular to the loop change with time if the induced emf is to be 4.12 Volts? Consider only positive numbers here in your answer.Suppose that a 0.25 m radius, 500 turn coil produces an average emf of 11300 V when rotated one-fourth of a revolution in 4.09 ms, starting from its plane being perpendicular to the magnetic field. What is the peak emf generated by this coil, in volts?Screenshots of the physics problem are provided below