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diamong [38]
3 years ago
12

A switch that has two throws and switches only one wire is known as a(n) A. SPDT. B. SPST. C. TPDT. D. DPDT.

Law
1 answer:
Allisa [31]3 years ago
8 0

Answer:

The correct answer is A. SPDT.

Explanation:

Let's recall that switches can be Single Pole (SP) or Double Pole (DP) depending on the number of electrical circuits controlled. In this case, it's just one and in consequence it's a SP.

Regarding the number of throws, ST switches close a circuit at only one position while DT switches close a circuit in the Up position, as well as the Down position (On-On). Our switch has two throws and it's DT.

<u>The correct answer is A. SPDT. </u>

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8 0
1 year ago
Given AB | | DE. Triangle A B C. Side A B is 12 miles and B C is x miles. Triangle C D E. Side C D is 6 miles and D E is 8 miles
Crank

Answer:

12 miles

Explanation:

Two triangles are similar if their two corresponding angles are congruent (equal) to each other.

if their two corresponding angles are of equal this also means that the third angle is also equal and corresponding.

ΔABC ∼ ΔEDC (two corresponding angles are congruent)

Therefore to find the sides, we use the following proportions:

\frac{AC}{AE}=\frac{BC}{BD}=\frac{DE}{AB}

BC = x miles, CD = 6 miles. Therefore BD = BC + CD = (6 + x) miles

DE = 8 miles, AB = 12 miles

Therefore:

\frac{BC}{BD}=\frac{DE}{AB}\\\frac{x}{x+6}=\frac{8}{12}\\48 + 8x = 12x\\ 12x-8x=48\\4x=48\\ x=48/4=12\\x=12miles

6 0
3 years ago
Read 2 more answers
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