A circular coil of radius 0.140 m contains a single turn and is located in a constant magnetic field of magnitude 0.320 T. The magnetic field has the same direction as the normal to the plane of the coil. The radius increases to 0.330 m in a time of 0.0830 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.780 2. Find the magnitude of the induced current. (a) Number i (b) Number i Units Units ✪ t

A circular coil of radius 0.140 m contains a single turn and is located in a constant magnetic field of magnitude 0.320 T. The magnetic field has the same direction as the normal to the plane of the coil. The radius increases to 0.330 m in a time of 0.0830 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.780 2. Find the magnitude of the induced current. (a) Number i (b) Number i Units Units ✪ t

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 24P: A 50-turn coil has a diameter of 15 cm. The coil is placed in a spatially uniform magnetic field of...

See similar textbooks

Similar questions

Design a current loop that, when rotated in a uniform magnetic field of strength 0.10 T, will produce an emf =0 sin t. where 0=110V and 0=110V .
A circular loop of wire with a radius of 4.0 cm is in a uniform magnetic field of magnitude 0.060 T. The plane of the loop is perpendicular to the direction of the magnetic field. In a time interval of 0.50 s, the magnetic field changes to the opposite direction with a magnitude of 0.040 T. What is the magnitude of the average emf induced in the loop? (a) 0.20 V (b) 0.025 V (c) 5.0 mV (d) 1.0 mV (e) 0.20 mV
Suppose that a rectangular toroid has 2000 windings and a self-inductance of 0.040 H. If h = 0.10 m, what is the current flowing through a rectangular toroid when the energy in its magnetic field is 2.0 × 10-6 J?
A 5000-pF capacitor is charged to 100 V and then quickly connected to an 80-mH inductor. Determine (a) the maximum energy stored in the magnetic field of the inductor, (b) the peak value of the current, and (c) the frequency of oscillation of the circuit.
A flat, square coil of 20 turns that has sides of length 15.0 cm is rotating in a magnetic field of strength 0.050 T. If tlie maximum emf produced in die coil is 30.0 mV, what is the angular velocity of the coil?
A metal bar of length 25 cm is placed perpendicular to a uniform magnetic field of strength 3 T. (a) Determine the induced emf between the ends of the rod when it is not moving, (b) Determine the emf when the rod is moving perpendicular to its Length and magnetic field with a speed of 50 cm/s.
A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2; it is wound uniformly with 1000 turns. A second toroidal coil of 750 turns is wound uniformly over the first coil. Ignoring the variation of the magnetic field within a toroid, determine the mutual inductance of the two coils.
A coil with a self-inductance of 3.0 H and a resistance of 100 2 carries a steady current of 2.0 A. (a) What is the energy stored in the magnetic field of the coil? (b) What is the energy per second dissipated in the resistance of the coil?
A 50-turn coil has a diameter of 15 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.50 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the emf induced in the coil if the magnetic field is reduced to zero uniformly in (a) 0.10 s, (b) 1.0 s, and (c) 60 s.
A closely wound rectangular coil of 80 turns has dimensions of 25.0 cm by 40.0 cm. The plane of the coil is rotated from a position where it makes an angle of 37.0 ° with a magnetic field of 1.60 Tto a position perpendicular to the field. The rotation takes 0.0700 s. What is the average emf induced in the coil? Express your answer with the appropriate units. HA 59 V
If a coil of wire in a magnetic field rotates 60 degrees, it provides an emf averaging 0.19 VV. If the coil consists of 3 loops of radius 0.50 mm and the magnetic field has a strength of 9.0 mTmT, how long does it take the coil to complete its rotation? Assume the coil is initially facing perpendicular to the field.
A circular coil of radius 0.11 m contains a single turn and is in a constant magnetic field of magnitude 0.27 T. Themagnetic field has the same direction as the normal to the plane of the coil. The radius increases to 0.30 m in atime of 0.080 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.70Ω. Find the magnitude of the induced current.