A 10-V Battery Is Connected to a 15- $\Omega$ Resistor and an Unknown Resistor R,as Shown

question 27

Multiple Choice

A 10-V battery is connected to a 15- $\Omega$ resistor and an unknown resistor R,as shown.The current in the circuit is 0.40 A.How much heat is produced in the 15- $\Omega$ resistor in 2.0 min?

• A)0.40 kJ
• B)0.19 kJ
• C)0.29 kJ
• D)0.72 kJ
• E)0.80 kJ

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