Questions
ayuda
option
My Daypo

ERASED TEST, YOU MAY BE INTERESTED ONElectromagnetic induction

COMMENTS STATISTICS RECORDS
TAKE THE TEST
Title of test:
Electromagnetic induction

Description:
These are MCQ

Author:
AVATAR
sudipta kumar roy
(Other tests from this author)


Creation Date:
07/04/2014

Category:
Science

Number of questions: 7
Share the Test:
Facebook
Twitter
Whatsapp
Share the Test:
Facebook
Twitter
Whatsapp
Last comments
No comments about this test.
Content:
If a magnet is dropped through a circular coil carrying current its acceleration as it passes through the coil would decrease increase remain same become zero.
How would the thickness of a coil used in a generator affect the e.m.f induced? increase decrease no change become zero.
State one use of eddy currents (though they are considered a loss). check level of oil in cars helps to control the stearing helps to maintain aerodynamics helps to find speed of car.
A coil is passed thorugh U-shaped magnet (just between tw sides) and current is passed. This U-shaped magnet is placed on a weighing balance. If current is increase how would it affect the weight of magnet. decrease as current increases no change increase as current increases depends on polarity of current passed.
Are electric motor and generator same thing or different? They are fully different as their construction and working both are different. They are different from the point of how they work but construction is same. Their construction is different but working is same. They are same in every way and aspect.
Is it possible to interconnect a motor and a generator so as to get continous supply of energy. Motor can run the generator and vice versa. yes it is possible as one will transfer the energy to other yes this is partially possible but motor has to be smaller than generaotor no it is not at all possible as we need to do some work to keep running any one of them. none of the above answer is right.
Could there exist a different force like electro-gravity (like we have electromagnetism). yes why not we could link both since electrons also experience the gravitational field. yes why not since gravitational field is quiet strong no since electrostatic field is quiet weak no since gravitational field is very weak compared to electric field.
Report abuse Consent Terms of use