question archive Ture or Flase question
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Ture or Flase question. ( need a simple sentence to explain)
(1)There are two negative charges placed very closed to each other. A very small positive charge is brought close to the first two charges. The electric field that is acting on the latter charge is the vectorial sum of the electric field of the negative charges.
(2)The electric field between the plates of a capacitor is oriented from the positive charged plate to the negative charged plate.
(3)If an object is charged positively means that it gains electrons
(4)Electric force is a field force like gravitational force.
(5)Linear speed and angular speed have the same unit.
1) True
2)True
3)False
4)True
5) False
(Explanation below)
Step-by-step explanation
1) Ttue. It is because electric field acting on the positive charge will be due to other charges and not itself , so the electric field is due to negative charges and is equal to the vector sum of their charges..
2)True. As electric field originate from positive charge and goes into the negative charge, therefore electric field between the plates of a capacitor is oriented from the positive charged plate to the negative charged plate.
3) False . A positively charged object have loss of electrons , not gain , because gaining electrons will make it negatively charged
4) True . Both gravitational force and Electric force are field force.
5) False. Unit of linear speed is m/s , whereas unit of Angular speed js rad/s