A $7.0 - \Omega$ Resistor Is Connected Across the Terminals of a Battery Having

question 141

Multiple Choice

A $7.0 - \Omega$ resistor is connected across the terminals of a battery having an internal emf of $10 \mathrm {~V}$ . If $0.50 - \mathrm { A }$ current flows, what is the internal resistance of the battery?

• A) \(20 \Omega\)
• B) \(13 \Omega\)
• C) \(27.0 \Omega\)
• D) \(10.8 \Omega\)

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