Purchase Solution

Induced emf in loop

Not what you're looking for?

Ask Custom Question

The current in the long straight wire AB of the figure is upward and is increasing steadily at a rate of di/dt.

1. what is the total flux in through the loop?

2. what is the induced emf in the loop?

Purchase this Solution

Solution Summary

A detailed solution is given.

Solution Preview

To calculate the flux, you first need to know the magnetic field at a distance r from the wire. This is given by:

B(r,t) = mu_{0} I(t)/(2 pi r)

The direction of the magnetic field is according to the right hand rule; if your thumb points in the direction of the current then your fingers point in the way the magnetic field points to. So for positive I, B points into the paper where you've drawn the loop.

The flux is given by the integral of B(r,t) over the surface of the loop. You need to define the sign of the flux by choosing a direction for the outward ...

Purchase this Solution


Free BrainMass Quizzes
Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Basic Physics

This quiz will test your knowledge about basic Physics.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

The Moon

Test your knowledge of moon phases and movement.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.