A rectangular resistor (shown below) is made of some material with resistivity 0-001 2 m. The...
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A rectangular resistor (shown below) is made of some material with resistivity 0-001 2 m. The end face of the resistor is of rectangular cross section, with the width being 1.0cm (as shown) and the height being 2.0 cm. The length of the resistor is 120 cm. When this resistor is connected across a battery with internal resistance 0.4 ohms the voltmeter connected to the terminals of the battery reads 12 volts. What is the emf of this battery? Select the closest answer: O 14 O 12.8 V O 11.2 V O 12 V O 13.4 V A rectangular resistor (shown below) is made of some material with resistivity 0-001 2 m. The end face of the resistor is of rectangular cross section, with the width being 1.0cm (as shown) and the height being 2.0 cm. The length of the resistor is 120 cm. When this resistor is connected across a battery with internal resistance 0.4 ohms the voltmeter connected to the terminals of the battery reads 12 volts. What is the emf of this battery? Select the closest answer: O 14 O 12.8 V O 11.2 V O 12 V O 13.4 V
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