Physics, 21.08.2019 02:30, southerntouch103

You take a lab battery and, when it isn't connected to a circuit, you measure a voltage of 4.00-v with a voltmeter. you then connect the battery to a 200-12 resistor and measure a current of 17.5-ma. what is the internal resistor of this battery?

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You take a lab battery and, when it isn't connected to a circuit, you measure a voltage of 4.00-v wi...