Physics, 02.04.2021 04:00 ijohnh14

9. A circular coil of radius 10 cm and with 125 turns is initially oriented perpendicular to a uniform magnetic field of strength 2.50 mT directed out of the page. The wire carries a current of .250 A. a) Sketch the situation. b) Indicate the direction of the magnetic moment of the coil. c) What is the torque on the coil

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Answer from: kad3n

Explanation:

Given that:

The radius = 10 cm

No of turns = 125

Current in the coil (I) = 0.250 A

Uniform magnetic field B = 2.50 mT = 2.5 × 10⁻³ T

a) The sketch of the situation can be seen below

b)The magnetic moment of the coil is $\mu^{\to} = ni A^{\to}$

where the direction of the magnetic moment is the same and equivalent to the direction of the area vector in the diagram. The region vector of the coil is parallel to the magnetic field.

In this manner, the direction of magnetic moment is perpendicular to the current loop by right-hand rule direction; which implies out of the page.

(c)

The torque $\tau = \mu^{\to} \times B^{\to}$

$= \mu B sin \theta$

where;

$\theta$ between $\mu$ and B = 0

Thus;

$\tau = \mu B sin (0)$

$\tau = 0$

9. A circular coil of radius 10 cm and with 125 turns is initially oriented perpendicular to a unifo

Answer from: Quest

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

Answer from: Quest

m₁v₁ + m₂v₂ = (m₁ + m₂)vmomentum is conserved.the left-hand side of the equation represents the momentum in the system before the collision.the right-hand side represents the momentum in the system after the collisionm₁ and v₁ represents the mass and the velocity of the physics blockm₂ and v₂ represents the mass and velocity of the ball of puttyv represents the final velocity of the combined mass.the question states the two masses stick together. they combined mass has its own velocity with the body mass the sum of the two objects' massestheir combined momentum is (m₁ + m₂)vto find the magitude of (m₁ + m₂)v, we need to add the vectors on the left-hand side of the equation: m₁v₁ + m₂v₂.note the diagram. i have positioned the vectors in accordance with their directions.the magnitude of the resultant can be calculated using the pythagorean theorem since this is a right triangle situation (north and west are perpendicular)|(m₁ + m₂)v| = √[ (m₁v₁)² + (m₂v₂)² ]|(m₁ + m₂)v| = √[ (1.5kg·8.0m/s)² + (0.40kg·20m/s)² ]|(m₁ + m₂)v| = 14.4 kg m/sfor two significant figures (assuming that 20m/s is two), this rounds to 14 kg m/s

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