1. The conductive bar m = 45g starts moving from rest, the magnetic field B = 2.8T, the length of bar inside of B field L = 22cm and the resistance of the bulb R=2.252. What is the induced emf E on the bar when it reaches the largest speed? Find the largest speed of the bar.
Q: 1. A loop conductor of area 1.0 m² is positioned perpendicular to a uniform 1.5 T magnetic field. a.…
A: Initial area of loop, A1=1 m2 Magnetic field intensity, B=1.5 T Final area of loop, A2=1.5 m2 Time…
Q: A single loop of copper wire, lying flat in a plane, has an area of 7.20 cm2 and a resistance of…
A: As the magnetic field flux changes through a loop this induces and emf in the lopp which in turn…
Q: A circular loop of wire with radius r= 10 cm and resistance R= 2.0 Ωlies in the xyplane. The loop is…
A: a. Using Faraday's law, emf induced is,…
Q: 27. A metal rod of length L=45.00 cm is pulled upward with constant velocity v = 8.00 m/s through a…
A: Given Length of rod is L=0.45 m Constant velocity is v=8.00 m/s Magnetic field is B=0.300 T
Q: A fixed 12.4-cm-diameter wire coil is perpendicular to a magnetic field 0.71 T pointing up. In 0.23…
A: Diameter of coil, d=12.4 cm⇒0.124 m Initial magnetic field, B1=0.71 T Final magnetic field, B2=0.24…
Q: A 25-turn circular coil of wire has diameter 1.00 m. It is placed with its axis along the direction…
A: Given: Number of turns, N=25 Diameter of coil, d=1 m Radius of coil, r=d2=12=0.5 m Earth's magnetic…
Q: 7. A rod of length, L = 10 cm is forced to move at constant speed v = 5.00 m/s along path parallel…
A: Emf is equal to the work done per unit charge
Q: Q.03 A single loop of wire with an area of 0.0900 m² is in a uniform magnetic field that has an…
A: Loop area (A) = 0.0900 m^2 Binitial = 3.80 T dB/dt = 0.190 T/s Resistance (R) = 0.600 ohm
Q: A 3.0-cm by 5.0-cm rectangular coil has 100 turns. Its axis makes an angle of 55º with a uniform…
A:
Q: 3. A rectangular loop consisting of 100 turns, measuring 60 cm x 80 cm. The loop is rotated with a…
A:
Q: 4. Three copper frames are dragged through an external magnetic field in the direction s shown. The…
A:
Q: directed perpendicular to the plane of the coil. Calculate the magnitude of the average emf that is…
A: Given value--- no of turns = 53 . dimension = 5 cm × 10 cm . magnetic field = 0 T to 0.510 T . time…
Q: A 151 turn circular coil of radius 2.23 cm is immersed in a uniform magnetic field that is…
A: number of turns = N = 151 Radius = r = 2.23 cm = 0.0223 m time interval = dt = 0.117 s increase in…
Q: 6. A rod slides along conducting rails which are connected to a resistor (R=2 N). The length of the…
A: a) value of induced emf = 4.35V b) magnitude of induced current = 2.175 A and direction is…
Q: "A square loop of wire is placed in a magnetic field that is perpendicular to its plane. The of each…
A:
Q: True or The SI unit of flux is the tesla while the SI unit of flux density is the weber. True or…
A: Given: Various statements. To Tell whether the statement is true or false.
Q: An emf is induced in a conducting loop of wire 1.25 m long as its shape is changed from square to…
A: Given : Length of the wire = 1.25m Change in time = 0.145 s Magnetic field = 0.481 T To Find…
Q: 3. A circular loop of wire with radius r and resistance R is immersed in a uniform magnetic field…
A:
Q: You create your very own electric generator using a big horseshoe magnet and a 13 cm by 13 cm square…
A: (a) Expression for rate of change of magnetic flux dϕ(t)dt is given as:…
Q: The magnetic field through a circular loop of radius r=15cm varies with time.The direction of the…
A:
Q: QUESTION 2 Find the magnitude of the induced emf in a circular coil with 38 loops and a radius 8.18…
A: Number of turns ( N ) = 38 Time taken = 14.5 sec Radius ( R ) = 8.18 cm = 0.0818 m Magnetic field…
Q: An elastic conducting material is stretched into a circular loop of 12.6 cm radius. It is placed…
A: Radius of the circular loop Magnetic Field Instantaneous rate of shrinking
Q: Suppose the long solenoid in the given figure below has 900 turns per meter and cross-sectional area…
A: Given: Number of turns in solenoid, n = 900 /m Cross sectional area, A = 5.5cm2 = 5.5 X 10-4 m…
Q: A coil with 20 turns of wire is wrapped around a tube with a cross-sectional area of 1.0 m2. A…
A:
Step by step
Solved in 4 steps with 8 images
- A 80-cm side length square coil has 145 turns. An initial uniform magnetic field of strength 6.5 mT is applied perpendicularly to the plane of the coil. Calculate the magnetic flux through the coil. The flux, o = Units Select an answer v If the field increases in strength from the initial value to 23.5 mT in 0.35 s, what average emf is induced in the coil? The induced emf, emf = Units Select an answer v What is the average current in the coil if it's resistance is 95 ? The current, = Units Select an answer vA 65 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.30 T field, starting with the normal of the plane of the coil perpendicular to the field. Assume that the positive max emf is reached first. a. What (in V) is the peak emf? b. At what time (in s) is the peak emf first reached? c. At what time (in s) is the emf first at its most negative? d. What is the period (in s) of the AC voltage output?A circular loop of wire has its radius shrink from 3 m to 1.5 m over 5 seconds. The area vector of the wire stays parallel with a magnetic field of magnitude 4 μT. What is the induced emf? 0 V 3.77e-6 V 0.94 V 1.70e-5 V
- Gabriel and Akito now decide to work a problem. A loop of wire in the shape of a rectangle rotates with a frequency of 310 rotation per minute in an applied magnetic field of magnitude 6 T. Assume the magnetic field is uniform. The area of the loop is A = 2 cm² and the total resistance in the circuit is 7. Find the maximum induced emf. E V max Find the maximum current through the bulb. Imax A =A straight wire carries a steady current / in a downward direction. A conducting bar touching two parallel conducting rails moves upward with velocity v. What is the polarity of the induced emf in terminals X and Y? X Y O X and Y are at the same potential. O X is positive and Y is negative. O Yis positive and X is negative.A single ring is moving through a magnetic field that varies in strength. The ring has a radius of 9.5 cm and it is moving at a velocity of 30 S The ring is oriented so that the magnetic field passes directly through the ring. It moves such that the magnitude of the magnetic field through the ring changes from 0.84 T to 2.25 T in 0.21 s. What is the magnitude of the induced emf in the ring? emf = V You measure the induced current in the ring as 1.54 A. What is the resistance of the ring? R = Ω What changes could you make in the system to increase the induced emf in the ring? Increase the number of loops in the ring Increase the velocity of the ring through the magnetic field Decrease the velocity of the ring through the magnetic field Decrease the area of the ring Increase the area of the ring Decrease the number of loops in the ring O O O O O
- A coil of 1000 turns encloses an area of 50e4 cm2 and is in a magnetic field of strength 3e-6 T which is parallel to the loops area vector. What is the induced emf if the magnetic field changes to 0 in half a minute? 5.0e-7 V 2.5e-7 V 0.005 V 0.0025 VSuppose a 57-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.270 m2. It is stretched to have no area in 0.110 s. What is the magnitude of the induced emf if the uniform magnetic field has a strength of 1.40 T? What is the direction of induced emf? CCW CW7
- A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 19.5 cm to 5.4 cm in 0.55 s. 1) What is the direction of the induced current? 2) What is the magnitude of the average induced emf? 3) What is the average induced current if the coil resistance is 4.7 Ω ?A 2.5 cm radius single circular wire coil is removed from a 4.5 x 10 T magnetic field in 0.25 s. What is the EMF induced in the coil? Select one: a. -3.5 x 10-V b. -2.2 x 10-7 V C. -2.8 x 10-V d. -1.1 x 10V4. A coil of wire is situated in a 0.5 T uniform magnetic field. The area of the coil is 2.0 m2. (a) What is the magnetic flux if the angle between the magnetic field and the normal to the surface of the coil is 60°? (b) After 5 s, the magnetic field is now parallel to the normal to the surface. What is the induced emf? Approach (a) The angle between the magnetic field and the normal to the surface of the coil is 60° (b) The angle between the magnetic field and the normal to the surface of the coil is 0°, because the magnetic field is now parallel to the normal surface (see Fig. 3).