Hey folks, these are a few questions I got wrong on my last test. Can anyone ans
ID: 1516868 • Letter: H
Question
Hey folks, these are a few questions I got wrong on my last test. Can anyone answer them correctly?
1) The electric field at the surface of an electric conductor is always:
a) parallel to the surface (my answer-incorrect)
b) perpendicular to the surface
c) can be in any direction
d) none of the above
2) Two point charges, A of mass m and charge Q, and B on mass m and charge 2Q, are placed on a frictionless surface. If charge A experiences an acceleration of a, what acceleration is experienced by B?
a) a
b) 2a (my answer-incorrect)
c) a/2
d) none of the above
3) to measure the current passing through a resistor, the ammeter and the resistor much be connected in:
a) series
b) parallel (my answer-incorrect)
c) either
d) none of the above
It's possible to have a question with more than one correct answer, though I don't think these have two possible answers. Correct me if I'm wrong!
Explanation / Answer
1) The electric field at the surface of an electric conductor is always:
b) perpendicular to the surface
2) Two point charges, A of mass m and charge Q, and B on mass m and charge 2Q, are placed on a frictionless surface. If charge A experiences an acceleration of a, what acceleration is experienced by B?
a) a
Since mass is same so acceleration must be same
3) to measure the current passing through a resistor, the ammeter and the resistor much be connected in:
a) series