Physics, 22.01.2020 06:32 potato1458
When a test charge is brought near a charged object, we know from coulomb's law that it will experience a net force (either attractive or repulsive, depending on the nature of the object's charge). a test charge may also experience an electric force when brought near a neutral object. any attraction of a neutral insulator or neutral conductor to a test charge must occur through induced polarization. in an insulator, the electrons are bound to their molecules. though they cannot move freely throughout the insulator, they can shift slightly, creating a rather weak net attraction to a test charge that is brought close to the insulator's surface. in a conductor, free electrons will accumulate on the surface of the conductor nearest the positive test charge. this will create a strong attractive force if the test charge is placed very close to the conductor's surface.
1. what is the nature of the force between balls a and b?
a) strongly attractive.
b) strongly repulsive.
c) weakly attractive.
d) neither attractive nor repulsive.
2. what is the nature of the force between balls a and c?
a) strongly attractive.
b) strongly repulsive.
c) weakly attractive.
d) neither attractive nor repulsive .
Answers: 1
Physics, 22.06.2019 11:30
A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
Answers: 2
Physics, 22.06.2019 14:40
According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f
Answers: 3
Physics, 22.06.2019 17:20
Select all the correct answers.which two statements are true? a moving magnetic field creates an electric field.a constant magnetic field creates an electric field.a constant electric field creates a magnetic field.a moving electric field creates a magnetic field.resetnext
Answers: 1
Physics, 23.06.2019 01:10
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the
Answers: 1
When a test charge is brought near a charged object, we know from coulomb's law that it will experie...
Biology, 22.10.2019 02:10
Social Studies, 22.10.2019 02:10
History, 22.10.2019 02:20
Mathematics, 22.10.2019 02:20
Computers and Technology, 22.10.2019 02:20
Mathematics, 22.10.2019 02:20
Biology, 22.10.2019 02:20
Biology, 22.10.2019 02:20
Physics, 22.10.2019 02:20
Mathematics, 22.10.2019 02:20
Social Studies, 22.10.2019 02:20