A normal source of emf has some internal resistancerinside it, between its terminals. If a is the + terminal and b is the - terminal, the potential difference, or terminal voltage, between them is Vah. When a source of emf delivers energy to an external circuit, current leaves the + terminal and returns through the - terminal. The terminal voltage is less than the emf because of the voltage drop across the internal resistance of the source internal r Hil ww a Vob =ɛ- ir (when the current leaves the + terminal) Vob =E+ ir (when the current enters the+ terminal) A car battery has an emf of 12.0V and an internal resistance of 0.02 Q. Calculate the terminal voltage if a 40-A current is being used to give the battery a quick charge (adding energy to the battery). le me O 12.0 V 12.8 V Iware O 18.0 V prizo.. O 600.0 V Microsoft Click Save and Submit to save and submit. Click Save All Answers to save all answers. Teams Save All Answers Save and Submit P Type here to search 立
A normal source of emf has some internal resistancerinside it, between its terminals. If a is the + terminal and b is the - terminal, the potential difference, or terminal voltage, between them is Vah. When a source of emf delivers energy to an external circuit, current leaves the + terminal and returns through the - terminal. The terminal voltage is less than the emf because of the voltage drop across the internal resistance of the source internal r Hil ww a Vob =ɛ- ir (when the current leaves the + terminal) Vob =E+ ir (when the current enters the+ terminal) A car battery has an emf of 12.0V and an internal resistance of 0.02 Q. Calculate the terminal voltage if a 40-A current is being used to give the battery a quick charge (adding energy to the battery). le me O 12.0 V 12.8 V Iware O 18.0 V prizo.. O 600.0 V Microsoft Click Save and Submit to save and submit. Click Save All Answers to save all answers. Teams Save All Answers Save and Submit P Type here to search 立
Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...
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Step 1
Given that,
Emf of the battery (E)= 12 v
Internal resistance (r)= 0.02 ohm
Current given to charge (i)= 40 A
Let the terminal voltage be V
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