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Aneli [31]
3 years ago
7

Which of the following describes a closed conducting loop through which an electrical current can flow?

Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0
I think the correct answer is the second option. A circuit describes a closed conducting loop through which an electrical current can flow. It is a path that an electrical current could flow. A circuit could be a closed one or an open circuit. A closed circuit would be a circuit where the current could flow continuously. An open circuit would be a type of circuit where the flow current would only go once and stopped at a particular point since the current has nowhere to go. For a circuit to work, an electric supply should be available to supply the electric current.
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Explanation:

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You are investigating an elevator accident which happened in a tall building. An elevator in this building is attached to a stro
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Answer:

a) F = 2250 Ib

b) F = 550 Ib

c) new max force ( F newmax ) = 2850 Ib

Explanation:

A) The force the wall of the elevator shaft exert on the motor if the elevator starts from rest and goes up

max capacity  of elevator = 24000 Ibs

counterweight = 1000 Ibs

To calculate the force (F) :

we first calculate the Tension using this relationship

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next determine F

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hence F = 2250 Ib

B ) calculate Tension first

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T = 1250 Ib

F = 2400 -1250 - 2400/ 4

F = 550 Ib

C ) determine design limit

Max = 2400 * 1.2 = 2880 Ib

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new max force ( F newmax ) = 2850 Ib

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3 years ago
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