Factors affecting induced emf, Physics

Assignment Help:

FACTORS AFFECTING INDUCED EMF

By experiment, the following factors may be noted:
• The faster the magnet (or coil) is moved, the greater is the deflection obtained on the meter. This shows that the magnitude of the emf is proportional to the rate of relative movement.
• Repeating the experiment using a stronger magnet results in greater meter deflection for the same rates of movement. Hence the magnitude of the emf is proportional to the flux density.
• Reversal of the direction of motion produces meter deflecting in the opposite sense. The direction of the induced emf therefore depends on the direction of motion.
• Using the south pole of the magnet instead of the north results in meter deflections in the opposite sense, showing that the direction of the induced emf depends upon the direction of the magnetic field.
• If more turns are used on the coil, meter deflection is greater and is proportional to the number of turns (N).


Related Discussions:- Factors affecting induced emf

Calculate energy lost - friction, The big hill on a roller-coaster ride is ...

The big hill on a roller-coaster ride is 91 m tall. If the mass of the roller-coaster car and its two riders is 314 kg and the maximum velocity reached by this roller-coaster r

Physics Assignment (URGENT) Pls, #questi1. A sound with a frequency of 261...

#questi1. A sound with a frequency of 261.6 Hz travels through water at a speed of 1435 m/s. What is the wavelength of the wave? a. 1.83 x 10 -1 m b. 3.753 x 10 5 m c. 5.486 m

Gray, Gray; Gy (after L.H. Gray, 1905-1965): The derived SI unit of ab...

Gray; Gy (after L.H. Gray, 1905-1965): The derived SI unit of absorbed dose, described as the absorbed dose wherein the energy per unit mass imparted to the matter through ion

Define the diatomic molecules in two dimensions, Define the Diatomic Molecu...

Define the Diatomic Molecules in Two Dimensions? You have been transported to a two-dimensional world by an evil wizard who refuses to let you revisit to your beloved Columbia

What is thomson effect, Q. Define: Thomson effect. Thomson recommended...

Q. Define: Thomson effect. Thomson recommended that when a current flows through unequally heated conductors heat energy is absorbed or evolved throughout the body of the meta

SOUND, Explain and write about sonar

Explain and write about sonar

Thermoelectricity, If in a thermoelectric series current flows from the met...

If in a thermoelectric series current flows from the metal occurring earlier in the series to metal occurring later through the cold junction, why in a copper-iron thermocouple, th

Determine the magnitude and direction of emf, A single turn coil of radius ...

A single turn coil of radius 5cm is placed on a plane paper and magnetic flux, directed perpendicularly out of the paper changes according to φ = 11t 2 + 7t + 15. Determine the ma

Specific heat, A 3Kg bar of aluminum has to be heated from 25 degrees Cels...

A 3Kg bar of aluminum has to be heated from 25 degrees Celsius to 75 degrees Celsius. how many calories are needed to achieve this temperature increase?

Determine the current taken by the capacitor, A motor has an output of 4.8k...

A motor has an output of 4.8kW, an efficiency of 80% and a power factor of 0.625 lagging when operated from a 240V, 50Hz supply. It is needed to improve the power factor to 0.9

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd