Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Science
4 Answers Below
Anyone can contribute an answer, even non-tutors.
Which is correct and why? I chose option 3 and wrong
Date Posted: 7 years ago
Views: 937
none will light, because bulb U is not connected properly
The answer is 4 because one of the bulbs is not connected properly
See 4 Answers
Answer: 1
The tip of U is not connected. The wire is connected to the metal case. The metal case is an electrical conductor so it acted as a wire.
S and T are connected properly with the wire, thus, they can still light up
Therefore, the answer is 1.
The tip of U is not connected. The wire is connected to the metal case. The metal case is an electrical conductor so it acted as a wire.
S and T are connected properly with the wire, thus, they can still light up
Therefore, the answer is 1.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
As Bulb V and Bulb T are in series. When V fuses, T will not light up and hence there is short circuit and ALL will NOT light up.
Date Posted:
7 years ago
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The orange arrows are the electric current that flows through the circuit.
After bulb S, there is 2 paths for the electric current to flow through the circuit. Since bulb V fused,the electric current will choose another path towards bulb T, and so bulbs T and U will receive the electric current. Therefore, none of the bulbs fuses.
After bulb S, there is 2 paths for the electric current to flow through the circuit. Since bulb V fused,the electric current will choose another path towards bulb T, and so bulbs T and U will receive the electric current. Therefore, none of the bulbs fuses.
Date Posted:
5 years ago
360 Tutoring Program