Answer:
Resistor B
Explanation:
Since resistance is the opposition to the flow of current in a circuit,
first let assume the two resistors are connected in parallel to the voltage, recall that when connection is in parallel, the different amount of current pass through the resistors depending on the value with the small resistor having a lower resistance effect hence higher current will pass through
The energy dissipated in each resistor can be calculated as
.
from the formula we can conclude that the energy value will be higher for the resistor with small resistance value. hence more heating effect which will cause it to be warm.
Also when connected individually the current flow from the voltage source will pass through the resistor which when we calculate the energy dissipated, the resistor with smaller value will be higher because it will draw more current which will in turn lead to a heating effect and cause the resistor to be warm. Hence we can conclude that the resistance B has greatest resistance value.
Answer:
The required diameter of the fuse wire should be 0.0383 cm to limit the current to 0.53 A with current density of 459 A/cm²
.
Explanation:
We are given current density of 459 A/cm² and we want to limit the current to 0.53 A in a fuse wire. We are asked to find the corresponding diameter of the fuse wire.
Recall that current density is given by
j = I/A
where I is the current flowing through the wire and A is the area of the wire
A = πr²
but r = d/2 so
A = π(d/2)²
A = πd²/4
so the equation of current density becomes
j = I/πd²/4
j = 4I/πd²
Re-arrange the equation for d
d² = 4I/jπ
d = √4I/jπ
d = √(4*0.53)/(459π)
d = 0.0383 cm
Therefore, the required diameter of the fuse wire should be 0.0383 cm to limit the current to 0.53 A with current density of 459 A/cm²
.
From an isometric view orientation resource, the four (4) typical characteristics of a front view include the following:
- The front view graphically shows the length and height of an object
- The front view has the least amount of hidden lines.
- The front view must be chosen first.
- The front view's orientation influences the other views.
<h3>What is an isometric sketch?</h3>
An isometric sketch is also referred to as an isometric drawing and it can be defined as a graphical (pictorial) representation of a physical object in technical and engineering drawings, especially by drawing all its three dimensions (3D) at full scale.
<h3>The five characteristics of isometric sketches.</h3>
In technical and engineering drawings, the five (5) characteristics of isometric sketches include the following:
- The final image isn't distorted.
- The image is in three dimensions (3D).
- The final image is drawn to full scale.
- The image are all uniformly foreshortened.
- They are drawn using vertical lines and horizontal lines.
From an isometric view orientation resource, the four (4) typical characteristics of a front view include the following:
- The front view graphically shows the length and height of an object
- The front view has the least amount of hidden lines.
- The front view must be chosen first.
- The front view's orientation influences the other views.
Read more on isometric sketches here: brainly.com/question/17275728
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