Homework Answers
Here ,
area , A = 0.20 m^2
for the current in the coil
I = change in magnetic flux/(time * resistance)
I = 160 * 0.20 * (0.40 - (-0.40))/(2 * 16)
I = 0.8 A
the induced current is 0.8 A
rate of power generated = I^2 * R
rate of power generated = 0.8^2 * 16
rate of power generated = 10.24 W
A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to...
A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of initial magnitude 0.40 T. The magnetic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s. If the resistance of the coil is 16 Ω, at what rate is power generated in the coil? 5.0 W 25 W 20 W 15 W 10 W
Aflat coil having 100 turns, each with an area of 0.20 m2, is placed with the...
Aflat coil having 100 turns, each with an area of 0.20 m2, is placed with the plane of its area perpendicular to a magnetic field. The magnetic field changes uniformly from 0.50 Tin the ty direction to 0.50 T in the -y direction in 2.0 s. If the resistance of the coil is 4,022, at what rate is power generated in the coil during this change? 25 W 20W 15 W 10 W
A 6.0-cm-diameter coil has 50 loops and a resistance of 0.40 12. The central axis of...
A 6.0-cm-diameter coil has 50 loops and a resistance of 0.40 12. The central axis of the coil is parallel to the +z-axis, which is perpendicular to, and points out of this page. The coil is situated in a whose 2-component varies with time as B.(t) = (1.0"") (4 – 5 s)? – 2.0 mT. (a) Find an expression for the current, i(t), induced in the coil. (b) Determine the magnitude and direction of the current induced in the coild...
please show calculations. the answers are 11mA, 4.8uC, and 1.0V A 50-turn circular coil (radius =...
please show calculations. the answers are 11mA, 4.8uC, and
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answer both for good rating A square coil of wire of side 2.50 cm is placed...
answer both for good rating
A square coil of wire of side 2.50 cm is placed in a uniform magnetic field of magnitude 1.50 T directed into the page as in the figure shown below. The coil has 35.0 turns and a resistance of 0.780 2. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following. Rotation axis X X X X X X X X (a) the magnitude...
A square coil of wire of side 3.80 cm is placed in a uniform magnetic field...
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...
1) The armature of an ac generator is a rectangular coil 2.00 cm by 6.00 cm...
1) The armature of an ac generator is a rectangular coil 2.00 cm by 6.00 cm with 80 turns. It is immersed in a uniform magnetic field of magnitude 0.250 T. If the amplitude of the emf in the coil is 22.0 V, at what angular speed is the armature rotating? _______rad/s 2) 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...
A circular coil with a radius of 0.20 m and 130 turns is placed in a...
A circular coil with a radius of 0.20 m and 130 turns is placed in a uniform magnetic field of strength 3.00 T, with the area vector of the loop pointing at an angle of 65 degrees from the magnetic field direction. The magnetic field is varied at a rate of 0.40 Tesla/second. If the loop has a resistance of 8.60 Ohms, what is the magnitude of the current through the loop? (in A) A⃝ 0.206 B⃝ 0.257 C⃝ 0.321...
A circular coil of wire 50 turns and a cross sectional area of 10.0 cm^2 carries...
A circular coil of wire 50 turns and a cross sectional area of 10.0 cm^2 carries a current of 4.0 A.It is placed in a magnetic field of 2.0 T with the coil making an angle of 60 degrees with the magnetic field. What is the torque exerted on the coil by the field? A) 0.70 N*m B) 0.20 N*m C) 0.80 N*m D) 0.40 N*m E) 0.35 N*m (I got 0.80 N*m,but I feel like I did something wrong...
A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The...
A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius of 0.20 m and consists of 400 turns. The transmitted radio wave has a frequency of 1.1 MHz. The magnetic field of the wave is parallel to the normal to the coil and has a maximum value of 2.0 x 1013 T. Using Faraday's law of electromagnetic induction and the fact that the magnetic field changes from zero to its...
Aflat coil having 100 turns, each with an area of 0.20 m2, is placed with the plane of its area perpendicular to a magnetic field. The magnetic field changes uniformly from 0.50 Tin the ty direction to 0.50 T in the -y direction in 2.0 s. If the resistance of the coil is 4,022, at what rate is power generated in the coil during this change? 25 W 20W 15 W 10 W
A 6.0-cm-diameter coil has 50 loops and a resistance of 0.40 12. The central axis of the coil is parallel to the +z-axis, which is perpendicular to, and points out of this page. The coil is situated in a whose 2-component varies with time as B.(t) = (1.0"") (4 – 5 s)? – 2.0 mT. (a) Find an expression for the current, i(t), induced in the coil. (b) Determine the magnitude and direction of the current induced in the coild...
please show calculations. the answers are 11mA, 4.8uC, and
1.0V
A 50-turn circular coil (radius = 15 cm) with a total resistance of 4.0 ohm is placed in a uniform magnetic field directed perpendicularly to the plane of the coil. The magnitude of this field varies with time according to B = A sin (at), where A = 80 mu T and alpha = 50 pi rad/s. What is the magnitude of the current induced in the coil at t...
answer both for good rating
A square coil of wire of side 2.50 cm is placed in a uniform magnetic field of magnitude 1.50 T directed into the page as in the figure shown below. The coil has 35.0 turns and a resistance of 0.780 2. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following. Rotation axis X X X X X X X X (a) the magnitude...
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...
A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius of 0.20 m and consists of 400 turns. The transmitted radio wave has a frequency of 1.1 MHz. The magnetic field of the wave is parallel to the normal to the coil and has a maximum value of 2.0 x 1013 T. Using Faraday's law of electromagnetic induction and the fact that the magnetic field changes from zero to its...
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