Answered

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The diagram shows a simple circuit. Which change would cause the light-bulb to get brighter?
A) Increase the length of the wire between the switch and the battery.
B) Decrease the length of the wire between the switch and the battery.
C) Reverse the direction of the battery.
D) Swap the positions of the lightbulb and the switch.

The Diagram Shows A Simple Circuit Which Change Would Cause The Lightbulb To Get Brighter A Increase The Length Of The Wire Between The Switch And The Battery B class=

Sagot :

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The correct option is B. Decrease the length of the wire between the switch and the battery.

Resistivity of wire

The resistivity of a wire is the measure of the opposition to the flow of current offered by the wire.

ρ = RA/L

RA = ρL

R = ρL/A

where;

  • ρ is resistivity of the wire
  • R is resistance of the wire
  • L is length
  • A is area

Decrease in length of the wire will cause a decrease in the resistance of the wire, and it will increase the current flowing in the wire, causing the bulb to glow brighter.

Learn more about resistance of wire here: https://brainly.com/question/2908881

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