Factors affecting induced emf, Physics

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).

Posted Date: 9/13/2012 5:55:56 AM | Location : United States







Related Discussions:- Factors affecting induced emf, Assignment Help, Ask Question on Factors affecting induced emf, Get Answer, Expert's Help, Factors affecting induced emf Discussions

Write discussion on Factors affecting induced emf
Your posts are moderated
Related Questions
why flashlight suddenly become dim or bright when shaked?

Which of the following scientists is responsible for the exclusion principle which states that two objects may NOT occupy the same space at the same time?  Was it: a) Heisenbe

If 10 9 electrons move out of a given body to another body every second, how much time is required to get a total charge of 1C of the other body? ------------------------------

A 985-kg car travelling south at 29.0 m/s hits a truck travelling  18.0 m/s west, as shown in the figure below. After the collision, the vehicles stick together and travel with

what is momentum ?

The decrease of mass is related to the binding of the individual particles together inside the nucleus. Therefore every stable nucleus has a mass which is less than the total ma


Which has additional rotational kinetic energy an object with a rotational inertia of 4 kg·m 2 and an angular velocity of 8 rad/s or else an object with a rotational inertia of 8

How a CPH does stop or its speed decreases? Answer; it is a principle that Vc is stable thus that; gradV c =0 Thus, never V c increases or decreases.

1. Discuss the internal noise sources that are present in a typical signal source and amplifier circuit, and describe their effects.  2.  The company currently has a low noise a