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GIBILISCO CHAP 5

GIBILISCO CHAP 5
20問 • 2年前
  • Czy Gamat
    • 通報

    問題一覧

  • 1

    In a series-connected string of holiday ornament bulbs, if one bulb gets shorted out, which of these is most likely?

    B. The current in the string will go up

  • 2

    Four resistors are connected in series across a 6.0-V battery. The values are R1 = 10Ω, R2 = 20Ω, R3 = 50Ω, and R4 = 100Ω as shown in Fig. 5-9. The voltage across R2 is:

    D. 670 mV.

  • 3

    In question 2 (Fig. 5-9), the voltage across the combination of R3 and R4 is:

    C. 5.0 V.

  • 4

    Three resistors are connected in parallel across a battery that delivers 15 V. The values are R1 = 470Ω, R2 = 2.2 KΩ, R3 = 3.3 KΩ (Fig. 5-10). The voltage across R2 is:

    C. 15 V.

  • 5

    In the example of question 4 (Fig. 5-10), what is the current through R2?

    A. 6.8 mA.

  • 6

    In the example of question 4 (Fig. 5-10), what is the total current drawn from the source?

    B. 43 mA.

  • 7

    In the example of question 4 (Fig. 5-10), suppose that resistor R2 opens up. The current through the other two resistors will:

    D. No change.

  • 8

    Four resistors are connected in series with a 6.0-V supply, with values shown in Fig. 5-9 (the same as question 2). What is the power dissipated by the whole combination?

    A. 200 mW.

  • 9

    In Fig. 5-9, what is the power dissipated by R4?

    B. 0.11 W.

  • 10

    Three resistors are in parallel in the same configuration and with the same values as in problem 4 (Fig. 5-10). What is the power dissipated by the whole set?

    D. 650 mW

  • 11

    In Fig. 5-10, the power dissipated by R1 is:

    B. 480 mW.

  • 12

    Fill in the blank in the following sentence. In either series or a parallel circuit, the sum of the s in each component is equal to the total provided by the supply.

    C. Wattage.

  • 13

    Suppose the resistors each have values of 33 Ω. The battery provides 24 V. The current at I1 is:

    B. 730 mA.

  • 14

    Let each resistor have a value of 820 Ω. Suppose the top three resistors all lead to light bulbs of the exact same wattage. If I1 = 50 mA and I2 = 70 mA, what is the power dissipated in the resistor carrying current I4?

    C. 1.3 W.

  • 15

    Refer to Fig. 5-6. Suppose the resistances R1, R2, R3, and R4 are in the ratio 1:2:4:8 from left to right, and the battery supplies 30 V. Then the voltage V2 is:

    A. 4 V.

  • 16

    Refer to Fig. 5-6. Let the resistances each be 3.3 KΩ and the battery 12 V. If the plus terminal of a dc voltmeter is placed between R1 and R2 (with voltages V1 and V2), and the minus terminal of the voltmeter is placed between R3 and R4 (with voltages V3 and V4), what will the meter register?

    C. 6 V

  • 17

    In a voltage divider network, the total resistance:

    B. Should be as small as the power supply will allow.

  • 18

    The maximum voltage output from a voltage divider:

    C. Is equal to the supply voltage.

  • 19

    Refer to Fig. 5-7. The battery E is 18.0 V. Suppose there are four resistors in the network: R1 = 100 Ω, R2 = 22.0 Ω, R3 = 33.0 Ω, R4 = 47.0 Ω. The voltage E3 at P3 is:

    B. 13.8 V

  • 20

    Refer to Fig. 5-7. The battery is 12 V; you want intermediate voltages of 3.0,6.0 and 9.0 V. Suppose that a maximum of 200 mA is allowed through the network. What values should the resistors, R1, R2, R3, and R4 have, respectively?

    C. 15 Ω, 15 Ω, 15 Ω, 15 Ω.

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    問題一覧

  • 1

    In a series-connected string of holiday ornament bulbs, if one bulb gets shorted out, which of these is most likely?

    B. The current in the string will go up

  • 2

    Four resistors are connected in series across a 6.0-V battery. The values are R1 = 10Ω, R2 = 20Ω, R3 = 50Ω, and R4 = 100Ω as shown in Fig. 5-9. The voltage across R2 is:

    D. 670 mV.

  • 3

    In question 2 (Fig. 5-9), the voltage across the combination of R3 and R4 is:

    C. 5.0 V.

  • 4

    Three resistors are connected in parallel across a battery that delivers 15 V. The values are R1 = 470Ω, R2 = 2.2 KΩ, R3 = 3.3 KΩ (Fig. 5-10). The voltage across R2 is:

    C. 15 V.

  • 5

    In the example of question 4 (Fig. 5-10), what is the current through R2?

    A. 6.8 mA.

  • 6

    In the example of question 4 (Fig. 5-10), what is the total current drawn from the source?

    B. 43 mA.

  • 7

    In the example of question 4 (Fig. 5-10), suppose that resistor R2 opens up. The current through the other two resistors will:

    D. No change.

  • 8

    Four resistors are connected in series with a 6.0-V supply, with values shown in Fig. 5-9 (the same as question 2). What is the power dissipated by the whole combination?

    A. 200 mW.

  • 9

    In Fig. 5-9, what is the power dissipated by R4?

    B. 0.11 W.

  • 10

    Three resistors are in parallel in the same configuration and with the same values as in problem 4 (Fig. 5-10). What is the power dissipated by the whole set?

    D. 650 mW

  • 11

    In Fig. 5-10, the power dissipated by R1 is:

    B. 480 mW.

  • 12

    Fill in the blank in the following sentence. In either series or a parallel circuit, the sum of the s in each component is equal to the total provided by the supply.

    C. Wattage.

  • 13

    Suppose the resistors each have values of 33 Ω. The battery provides 24 V. The current at I1 is:

    B. 730 mA.

  • 14

    Let each resistor have a value of 820 Ω. Suppose the top three resistors all lead to light bulbs of the exact same wattage. If I1 = 50 mA and I2 = 70 mA, what is the power dissipated in the resistor carrying current I4?

    C. 1.3 W.

  • 15

    Refer to Fig. 5-6. Suppose the resistances R1, R2, R3, and R4 are in the ratio 1:2:4:8 from left to right, and the battery supplies 30 V. Then the voltage V2 is:

    A. 4 V.

  • 16

    Refer to Fig. 5-6. Let the resistances each be 3.3 KΩ and the battery 12 V. If the plus terminal of a dc voltmeter is placed between R1 and R2 (with voltages V1 and V2), and the minus terminal of the voltmeter is placed between R3 and R4 (with voltages V3 and V4), what will the meter register?

    C. 6 V

  • 17

    In a voltage divider network, the total resistance:

    B. Should be as small as the power supply will allow.

  • 18

    The maximum voltage output from a voltage divider:

    C. Is equal to the supply voltage.

  • 19

    Refer to Fig. 5-7. The battery E is 18.0 V. Suppose there are four resistors in the network: R1 = 100 Ω, R2 = 22.0 Ω, R3 = 33.0 Ω, R4 = 47.0 Ω. The voltage E3 at P3 is:

    B. 13.8 V

  • 20

    Refer to Fig. 5-7. The battery is 12 V; you want intermediate voltages of 3.0,6.0 and 9.0 V. Suppose that a maximum of 200 mA is allowed through the network. What values should the resistors, R1, R2, R3, and R4 have, respectively?

    C. 15 Ω, 15 Ω, 15 Ω, 15 Ω.