Induced EMF is created when the magnetic flux through the surface of a closed-loop doesn't change. Select one: True False
Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
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Q: A car alternator produces peak output Vo to charge the car's 12 V battery. Suppose the alternator…
A: Given Data :The maximum voltage output is The diameter of coil is Revolution frequency is The…
Q: Calculate, in Tesla squared meters, the magnitude of the change in the magnetic flux. ΔΦ = ______…
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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
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Q: a square loop in the plane of the screen lies in a 0.55T constant magnetic field pointing out out…
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Q: A circular loop of wire with radius 3 m is flat on the xy plane in a magnetic field which is pointed…
A: Given: Initial Radius of loop (R) = 3.0 m. Final radius of loop (r) = 1.5 m. Changing time (dt) =…
Q: Problem 7: A conducting rod spans a gap of length L = 0.075 m and acts as the fourth side of a…
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Q: A prototype of an MRI consists of a set of 400 coils each having a radius of 0.30 m. To test its…
A: V=∆ϕ∆t=NBA∆t=NBπR2∆t=4001.2 T3.140.30 m23.6 s=37.7 V
Q: A 15.5-cm-diameter loop of wire is initially oriented perpendicular to a 1.9-T magnetic field. The…
A: Diameter, Magnitude of the magnetic field, Time,
Q: Problem 8: A rectangular coil with N = 1120 turns is moving to the right with a speed v = 7.4 m/s…
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Q: The rate of change of current in coil 1 is di 5 mA/ slence, there's a change of dt magnetic flux in…
A: rate of change of current in coli 1, di1dt=5 mA/s The current change in coil 1 produces a change in…
Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A:
Q: A TMS (transcranial magnetic stimulation) device creates very rapidly changing magnetic fields. The…
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Q: A circle wire loop with a radius of 1 m is in a 0.5 T magnetic field. Then over 0.2 seconds it is…
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Q: A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 1.50 m/s. What emf is…
A: Length, l = 0.200 mField, B = 0.500 TSpeed, v = 1.50 m/sInduced emf, ε = ?
Q: A coil of 1000 turns encloses an area of 25 cm2 and is in a magnetic field of strength 3e-6 T which…
A: Number of turns (N) =1000 Area (A) = 25 cm2 B1 = 36e-6 T B2 = 0 T ∆t = 0.5 min = 30 sec (half a…
Q: A motion EMF system consists of a conductive bar that can freely slide across bare wires in which it…
A: ε=BvLIR=BvLI=BvLR Since the length of the conductive bar is not given, let it be of unit length,…
Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A: Initial magnetic field is Bi=0R=1.00 mJ =1.00 mJ×10-3 J1 mJ =10-3 J Final magnetic field is…
Q: Considerable scientific work is currently under way todetermine whether weak oscillating magnetic…
A: Calculate the maximum emf as follows,
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: A technician wearing a circular metal band on his wrist moves his hand (from a region where the…
A: Given: The strength of the initial magnetic field is zero. The strength of the final magnetic field…
Q: )An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A: Magnetic field strength 4.40 TDiameter of the ring 2.20 cmTime taken to move into the field: 0.35 s
Q: An emf is induced by rotating a 1000 turn, 19 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic…
A: Number of turns , N = 1000 Diameter , d = 19 cm = 0.19 m Radius , R = 0.095 m Magnetic field , B = 5…
Q: A straight wire carries a steady current / in a downward direction. A conducting bar touching two…
A: Y os positive and x is negative.
Q: A technician wearing a circular metal band on his wrist moves his hand (from a region where the…
A: Answer :- Given Magnitude of magnetic field (B) = 1.6 T Angle ( theta ) = 450 Diameter of the…
Q: If the magnetic field from the radio waves changes at a rate of 8.9 × 10-4T/s and is perpendicular…
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Q: A 520-turn coil with an area of 0.305 square meters is spun in the Earth's 5.00 x 10-5 tesla…
A: The objective of the question is to find the frequency at which the coil must be spun to produce a…
Q: A square loop of wire of side a contains a resistor R and a capacitor C. The loop sits in a…
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Q: the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases to zero and…
A: Given that, the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases…
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- A series RL circuit is built with 110 2 resistor and a 5.0-cm-long, 1.0-cm-diameter solenoid with 800 turns of wire. What is the peak magnetic flux through the solenoid if the circuit is driven by a 20 V, 5.0 kHz source? ΕΧΕΙ ΑΣΦ VAΣ ? mWbAn MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner’s 2.00 T field with his fingers pointing in the direction of the field. Find the average emf induced in his wedding ring in mV, given its diameter is 2.2 cm and assuming it takes 0.45 s to move it into the field.The 5-cm by 8-cm rectangular coil of a bicycle generator is rotating at a rate of 125 rpm in a 255-mT magnetic field. The output voltage of the generator is used to power a bicycle headlight that has a total resistance of 360 N. (a) How many turns are there in the coil if the peak output voltage is 1.8 V? N = turns (b) What is the rms-average current through the headlight? Irms mA
- A solenoid with 500 turns and a cross-sectional area of 0.01 m² is placed in a magnetic fieldthat increases from 0 T to 1 T in 4 seconds. Calculate the average induced EMF in the solenoid.Suppose you have a long, skinny conductor that is oriented with its long axis parallel to a uniform magnetic field. Suppose also that the conductor is moving along its long axis in a straight line at constant velocity v. Despite the motion of the conductor, no motional emf is induced. Why? The magnetic field is too uniform The velocity has no component normal to the magnetic field The velocity is too low The conductor is so long and so thin that its electrical resistance is too highAn MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.10 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.11 cm, and it takes 0.320 s to move it into the field. (a)What average current is induced in the ring if its resistance is 0.0100 Ω? (Enter the magnitude in amperes.) A (b)What average power is dissipated (in W)? W (c) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)T