answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: Why do a test charge be of negligible small magnitude?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Physics

Why should an test charge be of negligibly smaller magnitude?

The magnitude of the test charge must be small enough so that it does not disturb the distribution of the charges whose electric field we wish to measure otherwise the measured field will be different from the actual field.


What can you determine from an electric field vector at one point?

From an electric field vector at one point, you can determine the direction of the electrostatic force on a test charge of known sign at that point. You can also determine the magnitude of the electrostatic force exerted per unit charge on a test charge at that point.


What equation is used to describe the electric strength at a point in space?

The electric field at a point in space is the magnitude and direction of the force that would act on a small test charge if it were located at that point.


Why is an electric field considered a vector quanity?

Because if you place a small object with a small electric charge in the field and release it, there's a definite direction in which it will move under the influence of the field. The direction in which a positive test-charge tries to move is defined as the direction of the electric field at that point. Since it has both a magnitude and a direction, it has all the qualifications to be recognized as a vector, and to be granted all the rights and privileges attendant thereto.


What happens to the size of the electric filed if the charge on the test charge is halved?

Test charge is always a test charge. The electric field does not depend on the test charge. Usually we assume the test charge to be one coulomb positive charge. Though you make it half, it would never affect the field around the primary charge

Related questions

Why should an test charge be of negligibly smaller magnitude?

The magnitude of the test charge must be small enough so that it does not disturb the distribution of the charges whose electric field we wish to measure otherwise the measured field will be different from the actual field.


When probing the electric field direction it is necessary to specify that the magnitude of the test charge be very small?

A large "test charge" would influence the field you want to measure.


What are the differences between a test charge and a point charge?

A point charge is an electric charge that is concentrated at one mathematical point with no spacial extent, A test charge is a charge that is small enough to have no effect on a system, but is used to study a property.


What can you determine from an electric field vector at one point?

From an electric field vector at one point, you can determine the direction of the electrostatic force on a test charge of known sign at that point. You can also determine the magnitude of the electrostatic force exerted per unit charge on a test charge at that point.


What equation is used to describe the electric strength at a point in space?

The electric field at a point in space is the magnitude and direction of the force that would act on a small test charge if it were located at that point.


Why is an electric field considered a vector quanity?

Because if you place a small object with a small electric charge in the field and release it, there's a definite direction in which it will move under the influence of the field. The direction in which a positive test-charge tries to move is defined as the direction of the electric field at that point. Since it has both a magnitude and a direction, it has all the qualifications to be recognized as a vector, and to be granted all the rights and privileges attendant thereto.


What happens to the size of the electric filed if the charge on the test charge is halved?

Test charge is always a test charge. The electric field does not depend on the test charge. Usually we assume the test charge to be one coulomb positive charge. Though you make it half, it would never affect the field around the primary charge


Why core losses are negligible in short circuit test of transformer?

I am so sorry for your core losses


Dodge avenger battery dead?

Charge it, replace it,test the alternator,Charge it, replace it,test the alternator,


What is the voltage at the location of a Coulomb charge that has an electric potential?

A positive test charge of 1.6 x 10-11 C is placed in an electric field The force acting on it is 3.2 x 10-4 N What is the magnitude of the electric field intensity at the point where the charge is placed


How do you know which objects get positively charged and which objects get negatively charged?

For this we take a test charge which is a unit positive charge. Now, we take charge to be tested and bring test charge near to it. If both the charges repel the charge taken is positive and it they attract then the charge taken is negetive.


What are field lines?

i you want to know ask naruto i you want to know ask naruto