What is the battery's internal resistance? Express your answer to one significant figure and include the appropriate units. HA ? Value Units

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26.16

Constants
A battery with an emf of 12.0 V shows a terminal
voltage of 11.8 V when operating in a circuit with
two lightbulbs, each rated at 4.0 W (at 12.0 V),
which are connected in parallel.
Part A
What is the battery's internal resistance?
Express your answer to one significant figure and include the appropriate units.
HẢ
?
Value
Units
r =
Transcribed Image Text:Constants A battery with an emf of 12.0 V shows a terminal voltage of 11.8 V when operating in a circuit with two lightbulbs, each rated at 4.0 W (at 12.0 V), which are connected in parallel. Part A What is the battery's internal resistance? Express your answer to one significant figure and include the appropriate units. HẢ ? Value Units r =
Expert Solution
Step 1 To determine

Internal resistancer of the battery.given,emfε=12.0 Vterminal voltageV=11.8 VpowerP of each ball=4.0 W at 12.0 V

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