A 4 Ω , an 8 Ω , and a 12 Ω resistors, are connected in series with a 12 V battery.     (a) Calculate the equivalent resistance.     (b) What is the current in the circuit?     (c) What is the current in each resistor?; and     (d) What is the potential difference across the 8 Ω  resistor?.

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Chapter28: Direct-current Circuits
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Problem 28.8OQ: When resistors with different resistances are connected in series, which of the following must be...
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6. A 4 Ω , an 8 Ω , and a 12 Ω resistors, are connected in series with a 12 V battery.

    (a) Calculate the equivalent resistance.

    (b) What is the current in the circuit?

    (c) What is the current in each resistor?; and

    (d) What is the potential difference across the 8 Ω  resistor?.

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