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GIBILISCO CHAP 4

GIBILISCO CHAP 4
20問 • 2年前
  • Czy Gamat
    • 通報

    問題一覧

  • 1

    Suppose you double the voltage in a simple dc circuit, and cut the resistance in half. The current will become:

    A. Four times as great.

  • 2

    A wiring diagram would most likely be found in:

    C. The service/repair manual for a radio receiver

  • 3

    Given a dc voltage source delivering 24 V and a circuit resistance of 3.3 K ohms, what is the current?

    D. 7.3 mA.

  • 4

    4. Suppose that a circuit has 472 ohms of resistance and the current is 875 mA. Then the source voltage is:

    A. 413 V.

  • 5

    The dc voltage in a circuit is 550 mV and the current is 7.2 mA. Then the resistance is:

    B. 76 ohms

  • 6

    Given a dc voltage source of 3.5 kV and a circuit resistance of 220 ohms, what is the current?

    D. None of the above.

  • 7

    A circuit has a total resistance of 473,332 ohms and draws 4.4 mA. The best expression for the voltage of the source is:

    C. 2.1 kV.

  • 8

    A source delivers 12 V and the current is 777 mA. Then the best expression for the resistance is:

    A. 15 ohms

  • 9

    The voltage is 250 V and the current is 8.0 mA. The power dissipated by the potentiometer is:

    C. 2.0 W.

  • 10

    The voltage from the source is 12 V and the potentiometer is set for 470 _. The power is about:

    A. 310 mW

  • 11

    The current through the potentiometer is 17 mA and its value is 1.22K ohms. The power is:

    D. 350 mW.

  • 12

    Suppose six resistors are hooked up in series, and each of them has a value of 540 Ω. Then the total resistance is:

    B. 3.24 KΩ.

  • 13

    Four resistors are connected in series, each with a value of 4.0 K_. The total resistance is:

    D. 16 K Ω.

  • 14

    Suppose you have three resistors in parallel, each with a value of 68,000 ohms.Then the total resistance is:

    B. 23 KΩ.

  • 15

    There are three resistors in parallel, with values of 22 ohms, 27ohms, and 33 ohms. A 12-V battery is connected across this combination, as shown in Fig. 4-11. What is the current drawn from the battery by this resistance combination?

    A. 1.3 A

  • 16

    Three resistors, with values of 47 ohms, 68 ohms, and 82 ohms, are connected in series with a 50-V dc generator, as shown in Fig. 4-12. The total power consumed by this network of resistors is:

    C. 13 W

  • 17

    You have an unlimited supply of 1-W, 100-_ resistors. You need to get a 100-Ω, 10-W resistor. This can be done most cheaply by means of a series-parallel matrix of

    C. 4 x 4 resistors

  • 18

    You have an unlimited supply of 1-W, 1000-Ω resistors, and you need a 500- Ω resistance rated at 7 W or more. This can be done by assembling:

    A. Four sets of two 1000- Ω resistors in series, and connecting these four sets in parallel.

  • 19

    You have an unlimited supply of 1-W, 1000-Ω resistors, and you need to get a 3000-Ω, 5-W resistance. The best way is to:

    D. Do something other than any of the above.

  • 20

    Good engineering practice usually requires that a series-parallel resistive network be made:

    B. From resistors that are all the same

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    問題一覧

  • 1

    Suppose you double the voltage in a simple dc circuit, and cut the resistance in half. The current will become:

    A. Four times as great.

  • 2

    A wiring diagram would most likely be found in:

    C. The service/repair manual for a radio receiver

  • 3

    Given a dc voltage source delivering 24 V and a circuit resistance of 3.3 K ohms, what is the current?

    D. 7.3 mA.

  • 4

    4. Suppose that a circuit has 472 ohms of resistance and the current is 875 mA. Then the source voltage is:

    A. 413 V.

  • 5

    The dc voltage in a circuit is 550 mV and the current is 7.2 mA. Then the resistance is:

    B. 76 ohms

  • 6

    Given a dc voltage source of 3.5 kV and a circuit resistance of 220 ohms, what is the current?

    D. None of the above.

  • 7

    A circuit has a total resistance of 473,332 ohms and draws 4.4 mA. The best expression for the voltage of the source is:

    C. 2.1 kV.

  • 8

    A source delivers 12 V and the current is 777 mA. Then the best expression for the resistance is:

    A. 15 ohms

  • 9

    The voltage is 250 V and the current is 8.0 mA. The power dissipated by the potentiometer is:

    C. 2.0 W.

  • 10

    The voltage from the source is 12 V and the potentiometer is set for 470 _. The power is about:

    A. 310 mW

  • 11

    The current through the potentiometer is 17 mA and its value is 1.22K ohms. The power is:

    D. 350 mW.

  • 12

    Suppose six resistors are hooked up in series, and each of them has a value of 540 Ω. Then the total resistance is:

    B. 3.24 KΩ.

  • 13

    Four resistors are connected in series, each with a value of 4.0 K_. The total resistance is:

    D. 16 K Ω.

  • 14

    Suppose you have three resistors in parallel, each with a value of 68,000 ohms.Then the total resistance is:

    B. 23 KΩ.

  • 15

    There are three resistors in parallel, with values of 22 ohms, 27ohms, and 33 ohms. A 12-V battery is connected across this combination, as shown in Fig. 4-11. What is the current drawn from the battery by this resistance combination?

    A. 1.3 A

  • 16

    Three resistors, with values of 47 ohms, 68 ohms, and 82 ohms, are connected in series with a 50-V dc generator, as shown in Fig. 4-12. The total power consumed by this network of resistors is:

    C. 13 W

  • 17

    You have an unlimited supply of 1-W, 100-_ resistors. You need to get a 100-Ω, 10-W resistor. This can be done most cheaply by means of a series-parallel matrix of

    C. 4 x 4 resistors

  • 18

    You have an unlimited supply of 1-W, 1000-Ω resistors, and you need a 500- Ω resistance rated at 7 W or more. This can be done by assembling:

    A. Four sets of two 1000- Ω resistors in series, and connecting these four sets in parallel.

  • 19

    You have an unlimited supply of 1-W, 1000-Ω resistors, and you need to get a 3000-Ω, 5-W resistance. The best way is to:

    D. Do something other than any of the above.

  • 20

    Good engineering practice usually requires that a series-parallel resistive network be made:

    B. From resistors that are all the same