Project #41935 - physics 2

An automobile battery has an emf of 12.60 V and an internal resistance of 0.060 0 Ω. The headlights together have an equivalent resistance of 6.200 Ω (assumed constant).
(a) What is the potential difference across the headlight bulbs when they are the only load on the battery? (Give your answer to four significant figures.)
WebAssign will check your answer for the correct number of significant figures.  V

(b) What is the potential difference across the headlight bulbs when the starter motor is operated, requiring an additional 35.0 A from the battery? (Give your answer to four significant figures.)
WebAssign will check your answer for the correct number of significant figures.  V
  
 
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The circuit shown in the figure below is connected for 2.90 min. (Assume R1 = 8.20 ΩR2 = 2.10 Ω, and V = 11.0 V.)
(a) Determine the current in each branch of the circuit.
branch magnitude (A) direction
left branch
middle branch
right branch

(b) Find the energy delivered by each battery.
4.00 V battery  J
11.0 V battery  kJ

(c) Find the energy delivered to each resistor.
8.20 Ω resistor  J
5.00 Ω resistor  J
1.00 Ω resistor  J
3.00 Ω resistor  J
2.10 Ω resistor  J

(d) Identify the type of energy storage transformation that occurs in the operation of the circuit. 

This answer has not been graded yet.



(e) Find the total amount of energy transformed into internal energy in the resistors.
 kJ

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Subject Science
Due By (Pacific Time) 10/03/2014 12:00 am
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