Physics Physics Practice Problems Solutions Library

Motional EMF Solutions Library

Access 18 Motional EMF video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Motional EMF learn videos.

Browse Solutions

18 solutions

Motional EMF

Q. A jet airplane with a 75.0 m wingspan is flying at 280 m/s. (a) What emf is induced between wing tips if the vertical component of the Earth's fiel...

Solved • Jul 20, 2020

Motional EMF

Q. Consider an unknown dry cell for which a potentiometer is balanced when the variable resistance is Rx = 1.7 Ω, while an alkaline standard cell with...

Solved • Jul 16, 2020

Motional EMF

Q. A 10cm long wire is pulled along a U shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.20 Ω....

Solved • Jun 2, 2020

Motional EMF

Q. The loop in the figure is being pushed into the 3.00 T magnetic field at 10.0 m/s. (a) The resistance of the loop is 2.46 Ω. What is the magnitude ...

Solved • Jun 2, 2020

Motional EMF

Q. The figure shows emf phasors a, b, and c.Part AFor each, what is the instantaneous value of the emf?Part BAt this instant, is the magnitude of emf ...

Solved • May 27, 2020

Motional EMF

Q. A scalloped hammerhead shark swims at a steady speed of 1.0 m/s with its 80 -cm-wide head perpendicular to the earth's 56µT magnetic field.What is ...

Solved • May 21, 2020

Motional EMF

Q. (a) An 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...

Solved • May 20, 2020

Motional EMF

Q. The cube shown in the figure below, 50.0 cm on a side, is in a uniform magnetic field of B = 0.125 T , directed along the positive y-axis. Wires A,...

Solved • May 11, 2020

Motional EMF

Q. A bicycle generator rotates at 1900 rad/s, producing an 18.0 V peak emf. It has a 1.00 cm by 3.00 cm rectangular coil in a 0.770 T field.(a) How ma...

Solved • May 2, 2020

Motional EMF

Q. Which of the following will cause an induced current in a coil of wire?a) the constant field of the earth passing through the coilb) a magnet resti...

Solved • Apr 24, 2020

Motional EMF

Q. The earth's magnetic field strength is 5.0x10-5 T. How fast would you have to drive your car to create a 4.0 V motional emf along your 1.0 m -long ...

Solved • Apr 7, 2020

Motional EMF

Q. A 10 cm long zero resistance wire is pushed towards the 2.0 Ω resistor with a steady speed of 0.5 m/s as shown in the figure below. A magnetic fiel...

Solved • Apr 27, 2017

Motional EMF

Q. A metal bar is pulled to the right perpendicular to a uniform magnetic field. The bar rides on parallel metal rails connected through a resistor, a...

Solved • Mar 29, 2017

Motional EMF

Q. A square, 60-turn coil 10.0 cm on a side with a resistance of 0.920 Ω is placed between the poles of a large electromagnet. The electromagnet produ...

Solved • Mar 27, 2017

Motional EMF

Q. A conducting rod of length 0.20 m makes slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform ma...

Solved • Jan 26, 2017

Motional EMF

Q. A conducting rod of length 0.20 m makes slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform ma...

Solved • Jan 26, 2017

Motional EMF

Q. A metal bar is moving toward the bottom of the page, as shown in the sketch. The bar is in a uniform magnetic field B that is directed into the pag...

Solved • Jan 24, 2017

Motional EMF

Q. A jumbo jet with wing span (distance between the wing tips) of 30 meters is cruising with speed of 2000 km/hour. Suppose that the earth's magnetic ...

Solved • Dec 19, 2016