A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of...
A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of 0.190 m2. A coil having 240 turns and a total resistance of 19.0 Ω is placed around the electromagnet. The current in the electromagnet is then smoothly reduced until it reaches zero in 20.0 ms. What is the current induced in the coil?
Question 31.8 and question 31.27
000 W A strong a unifrm magnetic field of 1.60 T over a cross-sectional area of 0320 m2. A col' having 230 turns and a total resistance of 19.0 n is placed around the electromagnet. The current in the electromagnet is then smoothly reduced until it reaches zero in 20.0 ms. What is the current induced in the col? 31 P 027 MI F The figure below shows a top view of a bar that...
The magnetic field between the poles of an electromagnet is 3.30 T. A coil of wire is placed in this region so that the field is parallel to the axis of the coil. The coil has electrical resistance 24.6 Ω and radius 1.80 cm. When the current supply to the electromagnet is shut off, the total charge that flows through the coil is 9.00 mC. How many turns are there in the coil?
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?
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...
(10pts) A coil with 500 turns of cross-sectional area 2 m2 rotates at 60 Hz in a uniform magnetic field of 0.3 T. What is the maximum current flowing through a load of 10000 Q?
A flat coil of wire consisting of 20 turns, each with an area of 10 cm, is positioned perpendicularly to a uniform magnetic field that varies with time according to B=2.5 f. where t is measured in s and B in T. If the coil has a total resistance of 0.10 9, what is the magnitude of the induced current at 0.8s? a. 0.20 A b. 0.60 A c. 0.50 A d. 0.80 A e. None of the above At what frequency...
One hundred turns of insulated copper wire are wrapped around a wooden cylindrical core of cross-sectional area 1.30×10-3 m2. The two terminals are connected to a resistor. The total resistance in the circuit is 15.0 O. If an externally applied uniform longitudinal magnetic field in the core changes from 1.60 T in one direction to 1.60 T in the opposite direction, how much charge flows through the circuit (in Coulombs)?
can you please show me how to do each of these thank
you!
The magnetic field in the region between the poles of an electromagnet is uniform at any time, butis a point) increasing at the rate of 0.020 T/s. The area of the conducting loop in the field is 180 cm?. What is the magnitude of the induced emf? 0.12 mV 0.90 ml 0.11 mV 0:0.36 mV A rectangular loop with area A rotates with constant angular velocity o...
A square coil of wire of side 2.30 cm is placed in a uniform magnetic field of magnitude 2.25 T directed into the page as in the figure shown below. The coil has 20.5 turns and a resistance of 0.780 Ω. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following. (a) the magnitude of the average emf induced in the coil during this rotation mV (b) the average...