Find the TRUE statement. Use the underlined word to determine whether the statement is true or false. Question 3 options: Electr
1 answer:
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Answer:
9.81 × 10⁻¹⁰ C
Explanation:
Given:
Distance between the tissue and the tip of the scale, r = 6 cm = 0.06 m
Charge on the ruler, Q = - 12 μC = - 12 × 10⁻⁶ C
Mass of the tissue = 3 g = 0.003 Kg
Now,
The force required to pick the tissue, F = mg
where, g is the acceleration due to gravity
also,
The force between (F) the charges is given as:
where,
q is the charge on the tissue
k is the Coulomb's constant = 9 × 10⁹ Nm²/C²
thus,
on substituting the respective values, we get
or
q = 9.81 × 10⁻¹⁰ C
Minimum charge required to pick the tissue paper is 9.81 × 10⁻¹⁰ C
Answer:
Explanation:
For this case we assume that we want to find the electrical field at the point P as we can see on the figure attached.
The electrical field wormula is given by:
Where r is the distance from the point and the charge. On this case we can use the Pythagoras theorem and we got:
And now we can replace into the formula since we know that and
, and we got:
