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algol13
3 years ago
11

Use the circuit diagram to decide if the lightbulb will light. Justify your answer.

Physics
2 answers:
podryga [215]3 years ago
5 0

Answer:

The lightbulb will NOT light.

Explanation:

You put me in a difficult position.  I can't help it, but the "sample answer" is by far the best way to explain this, briefly and correctly.  There's no other choice but to copy it.

This is a short circuit. The branch without the bulb has almost no resistance, so all the current will flow through that branch instead of flowing through the bulb.

<em>If</em> the lower switch were <u>opened</u>, THEN we would have a series circuit.  Current would no longer have any other choice but to flow through the bulb, and the bulb would light.

kogti [31]3 years ago
3 0

Answer:

Sample Response: The lightbulb will not light because this is a short circuit. The branch without the bulb has almost no resistance, so all the current will flow through that branch instead of flowing through the bulb.

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= (2001 x 10^7)/2 * (0.1239 - 0.0945)

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