Purchase Solution

emf induced in secondary

Not what you're looking for?

Ask Custom Question

The mutual inductance of two coils is 0.750 H. Calculate the average emf induced in secondary if the current in the primary reaches 6.00 A in 0.030 sec.

A) 150 V

B) 0.00375 V

C) 0.135 V

D) -150 V

Purchase this Solution
Solution Summary

Calculate the average emf induced in secondary

Solution Preview

Emf=M*(dI/dt)=0.75*(6/0.03)=150 (V)
<br>However, in order to decide if emf in the secondary coil is positive or ...

Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

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.

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.

The Moon

Test your knowledge of moon phases and movement.

View More Free Quizzes
Related BrainMass Solutions

  • Working with mutual inductance

    3886 Calculating the average emf induced in a secondary current. The mutual inductance of two coils is 0.750 H. How do I find the average emf induced in the secondary if the current in the primary reaches 6.00 A in 0.0300s?

  • True and False Questions about Transformers

    If Ns > Np, the average power in the secondary is greater than the average power in the primary. 1. False. Transformer works on the principle of induced emf in a coil placed in a varying magnetic field.

  • Electromagnetics Problems

    emf induced in the coil e = delta(B) *A/t => e = 0.0028*37*10^(-4)/0.5 = 2.072*10^(-5) V --Answer 2.)

  • Force, Velocity, Mass, EMF, Current, Magnetic Field, and Torque

    What average back emf is induced in the coil during this variation? How does this compare to the applied emf of 18 V?

  • Electromagnetics

    motion of the magnet and the loop that matters -if the loop is moved down past the bar magnet, there will not be an induced EMF in the loop -if the bar magnet sits stationary in the middle of the loop, the induced EMF will have its maximum value

  • Faraday's law of induction: Example problem

    There will be an induced EMF if the external B field is weak. There will be an induced EMF if the external B field is strong. There will be an induced EMF if the external B field is changing.

  • Electromagnetic Induction

    the magnitude of the induced EMF decreases (4) if the magnetic field increases, there will be an induced EMF in the loop (5) if the loop is translated (moved linearly) within the region of the magnetic field, there will not be an induced EMF in

  • Toroidal Solenoid

    The emf induced in the coil will be such as to oppose the cause of the reduction in the flux i.e. reduction in the battery emf.

  • Electromagnetics

    1) in order to make an induced EMF, the magnetic flux must be weak 2) in order to make an induced EMF, the magnetic flux must be static (steady) 3) the induced EMF has nothing to do with how fast the magnetic flux is changing through the loop

View More Related Solutions