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Resistors in Parallel 1. A 9.0 V battery is connected to four resistors of 2.0 Ω, 4.0 Ω, 5.0 Ω, and 7.0 Ω in parallel. Find the equivalent resistance, the total current, and the current of each resistor. 2. A 4.0 Ω resistor, an 8.0 Ω resistor, and a 12.0 Ω resistor are connected in parallel across a 24.0 V battery. a. What is the equivalent resistance of the circuit? b. What is the current in each resistor? 3. An 18.0 Ω, 9.00 Ω, and 6.00 Ω resistor are connected in parallel to an emf source. A current of 4.00 A is in the 9.00 Ω resistor. a. Calculate the equivalent resistance of the circuit. b. What is the potential difference across the source? c. Calculate the current in the other resistors. 4. Find the current in and potential difference across each of the resistors in the following circuits: a. A 2.0 Ω and a 4.0 Ω resistor wired in series with a 12 V source. b. A 2.0 Ω and a 4.0 Ω resistor wired in parallel with a 12 V source. c. A 4.0 Ω and a 12.0 Ω resistor wired in series with a 4.0 V source. d. A 4.0 Ω and a 12.0 Ω resistor wired in series with a 4.0 V source e. A 150 Ω and a 180 Ω resistor wired in series with a 12 V source. f. A 150 Ω and a 180 Ω resistor wired in parallel with a 12 V source. 5. A string of 35 miniature decorative lights is wired in series. If it draws 0.20 A of current when it is connected to a 120.0 V emf source, what is the resistance of each bulb?