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physics

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Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a
10.0- resistor is connected with the battery, the potential difference across the battery’s terminals drops to 10.9 V. What is the internal resistance of the battery?

  • physics -

    I = V/R = 10.9/10 = 1.09 Amps.
    r = V/I = (12-10.9)/1.09 = 1.0 Ohm.

  • physics -

    I = V/R = 10.9/10 = 1.09 Amps.
    r = V/I = (12-10.9)/1.09 = 1.0 Ohm.

  • physics -

    I = V/R = 10.9/10 = 1.09 Amps.
    r = V/I = (12-10.9)/1.09 = 1.0 Ohm.

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