A coil of 255 turns and area 0.500 m2 rotates in a uniform magnetic field
B = 0.350 T
such that the angle between the magnetic field and the area vector is given by
φ(t) = 6.50t rad.
If the coil starts from rest at
t = 0,
what is the magnitude of the emf induced in the coil at
t = 25.8 s?
A coil of 255 turns and area 0.500 m2 rotates in a uniform magnetic field B...
A rectangular loop (area = 1.1 m2) turns in a uniform magnetic field, B = 2.6 T. When the angle between the field and the normal to the plane of the loop is pi/2 rad and increasing at 2.1 rad/s, what emf is induced in the loop?
A rectangular loop (area = 0.250 m2) turns in a uniform magnetic field with B = 0.210 T. At an instant when the angle between the magnetic field and the normal to the plane of the loop is π/2 rads and increasing at the rate of 0.530 rad/s, what is the magnitude of the emf induced in the loop? 9.91E–2 V 1.47E–2 V 2.78E–2 V 5.25E–2 V 0
7.) (a) A rectangular loop of area 0.1 m2 rotates in a uniform magnetic field of B 2 T. When the angle between the magnetic field and the surface of the loop is 600 and increasing at 1 rad/s, what emf is induced in the loop? (b) The loop has turned further and has stopped with its surface parallel to the magnetic field. If the magnetic field then changes at the rate of 1 T/s, what emf is induced in...
2.) (a) A rectangular loop of area 0.15 m2 turns in a uniform magnetic field B- 0.2 T. When the angle between the field and the normal to the loop is ?/2 radians and increasing at 0.6 rad/s, what emf is induced in the loop? (b) A current of 20 mA flows ina single circular loop of 2m circumference. A magnetic field of 1 T is directed parallel to the plane of the loop. What is the magnetic moment of...
Chapter 30, Problem 022 A rectangular loop (area 2.6 m2) turns in a uniform magnetic field, B = 2.9 T. when the angle between the field and the normal to the plane of the loop is π / 2 what emf is induced in the loop? Number the tolerance is +/-596 rad and increasing at 3.7 rad/s, Units
Which letter is correct? 2. A rectangular loop (area 0.15 m2) turns in a uniform magnetic field with B -0.20 T. At an instant when the angle between the magnetic field and the normal to the plane of the loop is d2 rads and increasing at the rate of 0.60 rad/s, what is the magnitude of the emf induced in the loop? a. Zero b. 30 mV c. 24 mV d. 18 mV
A circular coil (800 turns, radius = 0.040 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.028 s, the normal makes an angle of 45o with the field because the coil has made one-eighth of a revolution. An average emf of magnitude 0.094 V is induced in the coil. Find the magnitude of the magnetic field at the location of the...
A square coil of wire of side 3.80 cm is placed in a uniform magnetic field of magnitude 2.00 T directed into the page as in the figure shown below. The coil has 30.5 turns and a resistance of 0.780 2. If the coil is rotated through an angle of 90.00 about the horizontal axis shown in 0.335 s, find the following. Rotation axis X X X (a) the magnitude of the average emf induced in the coil during this...
coil with 22 turns sits in a magnetic field. The cross-sectional area of the coil is 9.6 cm2. If the magnetic field uniformly reduces from 11 T to 3.0 T in 6.0 seconds, what is the magnitude of the induced emf in that coil?
20) A coil having 20 turns and an area of 0.04 m2 rotates at 10 rev 5-1 in a magnetic field of 0.02 T. The resistance of the coil is 2 and its self-inductance is 1 mH. The induced emf is: a) 0.38n sin(10mt) b) 0.28n sin(20nt) c) 0.38n sin(20ft) d) 0.28+ sin(10xt) e) none