Question

If you want to make a flashlight and have two batteries and a lightbulb, predict how you would hook them up to make the brightest flashlight, and explain why. Build circuits to check your answer and insert images from the simulation for evidence.

Simulation link: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kit-dc_en.html

Answer 1

To get the brightest light we have to hook them in parallel connection because here both the bulb will get same voltage which enhances the brightness of the bulbs as compared to the series connection.

P = V²/R

As here for both the connection Value of resistance of bulbs are same and also they have same voltage supply.

Hence power or brightest will be maximum for those which gets maximum Voltage which will be possible only in parallel connection.

Wire Show Current Electrons O Conventional Labels O Values Battery 2 Voltmeter Ammeters Light Bulb + Wire Resistivity Resistor + Battery Resistance Switch + 2

Answer 2