Physics: A wire has a length of 7.00 imes 10^{-2} m and is used to make a circular coil of one turn. There is a current of 4.30 A in the wire. In the presence of a 2.50-T magnetic field, what is the maximum torque that this coil can experience

A wire has a length of 7.00 \times 10^{-2} m and - id7001025486931, bandiadummy8595

Ответ:

Corgilover1234

21.01.2022

Physics

Maximum torque that coil experience is 4.19 x 10⁻³ N-m

Explanation:

Given :

Length of wire, L = 7 x 10⁻² m

Current flowing through the circular coil, I = 4.30 A

Magnetic field applied, B = 2.50 T

Number of turns, N = 1

The relation to determine torque experienced by the circular coil due to magnetic field:

τ = NIAB sinθ ....(1)

Here A is the area of the circular coil and θ is the angle between circular coil and magnetic field.

Consider the radius of the circular coil be r.

But, length of wire = Circumference of the circular coil

So, L = 2πr

r = L/2π ....(2)

Area of circular coil, A = πr²

Substitute equation (2) in the above equation.

$A=\frac{L^{2} }{4\pi }$

Substitute the above equation in equation (1)

$\tau=\frac{NIBL^{2} \sin \theta}{4\pi }$

The torque will be maximum when sin θ = 1, that is, θ = 90⁰. Thus, the above equation becomes:

$\tau=\frac{NIBL^{2}}{4\pi }$

Substitute the suitable values in the above equation.

$\tau=\frac{1\times4.30\times2.50\times(7\times10^{-2}) ^{2}}{4\pi }$

τ = 4.19 x 10⁻³ N-m

0,0(0 оценок)

Ответ:

Angel1107

28.07.2021

Physics

The rank of the items is E,B,F,A,D,C..

Explanation:

In the given problem, The satellites fire rockets that provide the force needed to maintain a circular orbit around the space station. The centripetal force is acting to keep up the continuous circular motion.

The expression for the centripetal force is as follows;

$F=\frac{m\times v^{2}}{r}$

Here, m is the mass of the object, v is the velocity and r is the radius.

In the given problem, the orbital period is constant.

$r\propto v$

Thus,

$F\propto m\times r$

In the given problem, each satellite has mass m and radius of orbit L.

r=L+R

Calculate the net force acting on each satellite from their rockets for the part A.

mr=m(L+R)

Put m= 200 kg, R=6378 km and L=5000 m.

mr=200(5000+6378)

$mr=1.28\times 10^{9}kg\times m$

Calculate the net force acting on each satellite from their rockets for the part B.

mr=m(L+R)

Put m= 400 kg, R=6378 km and L=2500 m.

mr=400(2500+6378)

$mr=2.55\times 10^{9}kg\times m$

Calculate the net force acting on each satellite from their rockets for the part C.

mr=m(L+R)

Put m= 100 kg, R=6378 km and L=2500 m.

mr=100(2500+6378)

$mr=6.38\times 10^{8}kg\times m$

Calculate the net force acting on each satellite from their rockets for the part D.

mr=m(L+R)

Put m= 100 kg, R=6378 km and L=10000 m.

mr=100(10000+6378)

$mr=6.39\times 10^{8}kg\times m$

Calculate the net force acting on each satellite from their rockets for the part E.

mr=m(L+R)

Put m= 800 kg, R=6378 km and L=5000 m.

mr=800(5000+6378)

$mr=5.11\times 10^{9}kg\times m$

Calculate the net force acting on each satellite from their rockets for the part F.

mr=m(L+R)

Put m= 300 kg, R=6378 km and L=7500 m.

mr=300(7500+6378)

$mr=1.92\times 10^{9}kg\times m$

Therefore, the rank of the items is E,B,F,A,D,C.

0,0(0 оценок)

A wire has a length of 7.00 \times 10^{-2} m and is used to make a circular coil of one turn. There is a current of 4.30 A in the wire. In the presence of a 2.50-T magnetic field, what is the maximum torque that this coil can experience

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Physics

Ask an AI advisor a question