Circular loop Definition and 62 Threads

Consider a circular loop. If I were to apply forces at all points on the loop such that the forces are perpendicular to it and in the same plane as the loop, the net force experienced by the loop equals zero. But it expands. The loop expands even when no work is being done on it. How can it be...

Homework Statement A roller coaster car is on a track that forms a circular loop of radius R in the vertical plane. (a) If the car is to maintain contact with the track at the top of the loop, what is the minimum speed v that the car must have at the bottom of the loop? Ignore air...

Homework Statement A current flows in a circular loop consisting of a single turn.If the same wire is bent into a circular loop of 2 turns and the same current is passed through the loop,the magnetic flux density at the centre will change by a factor of ...? (ans: 4 ) Relevant equations B...

Homework Statement I know how to find the magnetic field at the center of a circular loop of wire carrying current. If the radius of the loop is R, how do you find the magnetic field at a distance a from the center of the loop where a<R? Homework Equations d{\mathbf{B}} = \frac{{\mu _0...

Homework Statement The Biot-Savart Law states that the direction and magnitude of the magnetic field B produced at a point P by a current length element I dl is given by: d\vec{B} = \frac{\mu_0}{4\pi}\frac{Id\vec{l}\times \hat{r}}{r^2} Where \hat{r} = \frac{\vec{r}}{r} where r...

Homework Statement In an air show, a pilot is to execute a circular loop at the speed of sound(340 m/s) . The pilot may black out if his acceleration exceeds 8g. Find the radius of the smallest circle he can use. [Take g=10 m s^-2 Homework Equations possible equations: u^2 >= 2*M*G/a...

A circular loop of wire has a changing magnetic field running through it...however, the magnetic field is not touching the wire; its contained so that it simply runs through the loop without touching the wire. Apparently, there is still an emf through the wire even though the magnetic field is...

hey, how would you find the minimum speed of an object required to make it go around a circular loop?

Hi. When a plane travels in a vertical circular loop, what is the provider of the centripetal force, required to produce the circular motion? At the top of the loop, there is gravity acting towards the center of the circle, so id assume that this is part of it, but what about at the bottom...

I'd really appreciate some help with the following questions. Q1) What is the direct of the induced current in the circular loop due to the current shown in each part of the following fig?Have attached pics of 2 questions. The one on top has I increasing and one on the bottom has I decreasing...

"A conductor consists of a circular loop of radius .0584 m and straight long sections. The wire lies in the plane of the paper and carries a current of 9.68 A. Determine the magnitude of the magnetic field at the center of the loop. Answer in units of T." ---------- Perhaps I am not...

The setup is just a circular loop with a capacitor C on the right side (i.e. at 3 o'clock) and a resistor R on the left side (at 9 o'clock), completely inside a uniform magnetic field. There is no battery, etc; just the emf induced by the magnetic field. A uniform magnetic field (directed...