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Serway_CP_poll_ch18

# Serway_CP_poll_ch18 - A 10 V emf battery is connected in...

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A 10 V emf battery is connected in series with the following: a 2 microfarad capacitor, a 2 ohm resistor, an ammeter, and a switch, initially open; a voltmeter is connected in parallel across the capacitor. After the switch has been closed for a relatively long period (several seconds, say), what are the current and capacitor voltage readings, respectively? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. zero A, 10 V 2. zero A, zero V 3. 5 A, zero V 4. 5 A, 10 V

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The following three appliances are connected to a 120 volt house circuit: i) toaster, 1200 W, ii) coffee pot, 750 W, and iii) microwave, 600 W. If all were operated at the same time what total current would they draw? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 3 A 2. 5 A 3. 10 A 4. 21 A
A 10 V emf battery is connected in series with the following: a 2 microfarad capacitor, a 2 ohm resistor, an ammeter, and a switch, initially open; a voltmeter is connected in parallel across the capacitor. At the instant the switch is closed, what are the current and capacitor voltage readings, respectively? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. zero A, 10 V 2. zero A, zero V 3. 5 A, zero V 4. 5 A, 10 V

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A battery with an emf of 6.3 V is connected in series with a resistor of 2.0 ohms. What is the total power delivered by the battery to the circuit? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 22.0 W 2. 20.0 W 3. 12.6 W 4. 25.2 W
A battery with an emf of 6.3 V is connected across the ends of an external resistor of 2 ohms. What is the current through the resistor? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 12.6 A 2. 6.3 A 3. 3.15 A 4. 5.3 A

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Three resistors having values of 4.0, 6.0 and 8.0 ohms, are connected in series. What is their equivalent resistance? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 18.0 ohms 2. 8.0 ohms 3. 6.0 ohms 4. 1.8 ohms
Three resistors having values of 4.0, 6.0 and 10.0 ohms, are connected in parallel. What is their equivalent resistance? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 20.0 ohms 2. 7.3 ohms 3. 6.0 ohms 4. 1.9 ohms

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Three resistors connected in parallel have individual values of 4.0, 6.0 and 10.0 ohms, respectively. If this circuit is connected to a 12.0 V battery what is the current in the 10 ohm resistor? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 0.55 A 2. 5.2 A 3. 1.2 A 4. 2.0 A
Three resistors connected in parallel have individual values of 4.0, 6.0 and 10.0 ohms, respectively. If this combination is connected in series with a 12.0 V battery and a 2.0 ohm resistor, what is the current in the 10 ohm resistor?

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