A 10-µf capacitor is plugged into a 110 v-rms 60-hz voltage source. what is the rms value of the current through the capacitor?
1 answer:
The rms value of current is0.414A, and the maximum value of current is 0.585A.
To find the answer, we have to study about the capacitive reactance.
<h3>How to find the rms and maximum value of current?</h3>- We have the expression for rms value of current as,
where; Xc is the capacitive reactance of the circuit.
- We have the capacitive reactance as,
- Thus, the value of rms current will be,
- Thus, the maximum value of current will be,
Thus, we can conclude that, the rms value of current is0.414A, and the maximum value of current is 0.585A.
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Answer:
4.2 km
Explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as isosceles triangle, scalene triangle, equilateral triangle and right angled triangle.
Sine rule states that for a triangle with angles A,B and C and corresponding opposite sides a, b, and c, the following formula holds:
Let the starting point be A, hence the side opposite to the angle = a = distance travelled in north east direction.
Let the point of 60° of northeast be B = 90° + (90° - 60°) = 120°, hence the side opposite to the angle = b = resultant displacement = 8 km.
Let C be the endpoint, hence the side opposite to the angle = c = distance travelled north = 5 km
Using sine rule:
∠A + ∠B + ∠C = 180° (sum of angle in a triangle)
∠A + 120 + 32.8 = 180
∠A = 27.2°
Therefore she travelled 4.2 km in the north east direction
Answer:
(a) 19.62 N
(b) Box moves down the slope
(c) 24.43 N
Explanation:
(a)
2 Kg box causes tension
hence
where m is mass and g is gravitational force
T'=4*9.81 sin 35= 22.5071 N
Since T' is greater than , then the box moves down the slope
(c)
Acceleration a=
When moving, the box will exert force T"=
T"= 4*9.81 sin 35 +(4*0.48)= 24.43 N