Consider a 12-loop coil with a diameter of 8 cm; a north-leading bar magnet moves further away from the coil (where the bar magnet is perpendicular to the cross section of the coil, and the north pole is closest to the coil as the magnet moves away). The magnetic field value changes from 0.065 T to 0.00065 T in 1.6 s.   From the perspective of the magnet (i.e., pretend you’re the north pole of the magnet and are looking at the front of the solenoid), what is the direction of the induced current?    Counterclockwise      There is no induced current      One induced current is into the page, and the other is out of the page      Into the page      Clockwise

Q: A rectangular, 13-turn planar wire loop has a resistance of 0.13 Q and an area of 2.26 m². A…

A: Here we will find the magnitude of resulting current

Q: To make an electric generator, a 142-turn square coil of side 20.0 cm rotates about a vertical axis…

A: Write the given values with the suitable variables. N=142a=20 cm=0.2 mω=25 rev/s=50π rad/sB=0.7…

Q: To monitor the breathing of a hospital patient, a thin belt is wrapped around the patient's chest as…

A: Given data as per question N   =  200 loop A  =  38 cm2 t  =  2s

Q: A circular coil of copper wire is lying flat on a horizontal table. A bar magnet is held with its…

A:

Q: Given M  = 3 î + ĵ − 4k̂  and  N= 3 î − 4 ĵ −k̂ , calculate the vector product  M ✕ N.

A:

Q: A long piece of wire with a mass of 0.1 kg and a total length of 4 m is used to make a square coil…

A: We know that the torque acting is the magnetic force and the other comes from the gravitational…

Q: What is the magnetic flux (in Wb) through the loop in each of the three cases shown? (a)…

A: magnetic field  line passing through a closed area known as flux Flux = B. A. Cosθ θ = angle…

Q: A coil has 240 turns enclosing an area of 12.2 cm2. In a physics laboratory experiment, the coil is…

A: Given, Number of turns in the coil, N = 240  area of coil,  A = 12.2 cm2 Time interval, t = 0.049 s…

Q: l=10 A 6. The direction of three wires is shown in the figure is inward and outward to the sheet.…

A:

Q: A conducting rail shaped like you see in the picture has a resistance R = 3.40 Q between points (1)…

A:

Q: A motor powered by a 9.0 V battery has a square coil with 30 turns with sides 5.0 cm long and a…

A: voltage of the battery (V) = 9 volts number of turns (N) = 30 turns side of square coil (s) = 5 cm =…

Q: A conductor suspended by two flexible wires as shown in the figure below has a mass per unit length…

A: Given data, Mass m=0.424 kg/m Magnetic Field B=3.4 T

Q: A coil rotating perpendicularly to a uniform magnetic field contains 350 turns and has an area per…

A: Given, A coil rotating perpendicularly to a uniform magnetic field contains 350 turns and has an…

Q: A uniform 4.5-T magnetic field passes through the plane of a wire loop loop when the direction of…

A: Given B = 4.5 T A = 0.10 m2 Angle made by magnetic field with plane of the loop     θ = 30°

Q: A circular coil has 50 turns of wire and carries 4.2 A. If the coil's radius is 3.5 cm, the magnetic…

A: The Number of turns in the coil (N) = 50The radius of the coil (R) = 3.5 cm = 0.035 mThe current in…

Q: While this field is changing, what does the ammeter read? Express your answer in milliamperes. I =…

A: Given  area (A)=0.3 x0.6=0.18 m2 Resistance(R)=15 ohms rate of change of magnetic field dBdt=-0.34…

Q: The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is…

A: If the strength of the magnetic field is also increased then the wire moves through a stronger…

Q: The figure below shows a cross section of a long thin ribbon of width w = 5.85 cm that is carrying a…

A:

Q: 4

A: Given that,Side of square coil, a= 4 cmNo. of turns of coil, N= 12 turnsStrength of magnetic field…

Q: monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as in…

A:

Q: To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as…

A: GivenNumber of turn in coil, N=195 turnIncrase in coil area, A=45 cm2Magnitude of Earth's magnetic…

Q: Magnetic Field (into the page) What direction is the induced Magnetic Field within the closed loop?

A: Given: At t = 1.0 s     Magnetic field (B) = 12.0 T At t = 4.0 s     B = 2.0 T

Q: The diagram shows a rectangular conducting coil with 13 turns that is in a magnetic field with a…

A:

Q: A copper square loop with sides 0.08 m and mass 0.23 kg can spin freely around the central axis in…

A: According to the principle of conservation of energy, the maximum kinetic energy the loop can…

Q: In the figure below, a steel bar sitting on two parallel metal rails, connected to each other by a…

A:

Q: A DC power line for a light-rail system carries 1200 A at an angle of 27° to the Earth’s 5.00 × 10-5…

A:

Q: The figure below shows three edge views of a square loop with sides of length = 0.220 m in a…

A: Given data:  A square loop Side length (l) = 0.220 m Magnetic field (B) = 2.25 T Required: The the…

Q: To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest.…

A: Emf induced is equal to the rate of change if magneticvflux through the coil.

Q: 30.0 cm 40.0 cm (a) Find the direction and magnitude of the magnetic field at point P, which is in…

A:

Q: The figure below shows three edge views of a square loop with sides of length ℓ = 0.495 m in a…

A:

Q: A conducting coil of 2100 turns is connected to a galvanometer, and the total resistance of the…

A:

Q: The slide generator in the figure below is in a uniform magnetic field of magnitude 0.0500 T. The…

A:

Q: A square, 20.0-turn coil that is 13.0 cm on a side with a resistance of 0.690ohm is placed between…

A:

Q: In each of the figures below, a uniform magnetic field B points in the +x-direction. The magnitude…

A: See below

Q: A movable metal bar is in contact with opposite sides of a square ”C”- shaped wire as shown to the…

A:

Q: In the given figure, a square metal loop of side 4.00 cm and resistance 5.00 2 moves to the right…

A: In this question we are given with square metal loop and we have to plot the graph of the external…

Q: What is the magnitude of the magnetic flux (Pinitial) through the coil before it is rotated? Express…

A:

Q: A square, 27.0-turn coil that is 13.0 cm on a side with a resistance of 0.830Ω is placed between the…

A: Given data *The number of coils is N = 27.0 *The side of the square is a = 13.0 cm = 0.13 m *The…

Q: A coil has an area of 100 cm2 with 193 turns connected across a 5.00 n resistor to form a closed…

A: Faraday's law of induction states that an emf is induced in a coil whenever there is some change in…