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Chapter 27: Q5Q (page 794)

For each circuit in Fig. 27-20, are the resistors connected in series, in parallel, or neither?

Short Answer

Expert verified

Fig 27.20aseries

Fig27.20bparallel

Fig27.20cparallel

Step by step solution

01

Given

02

Determining the concept

Observe the fig. carefully. If the resistances are one below the other, they are connected in parallel and if connected one after the other, they are in series.

03

Determining whether resistances are in series, parallel, or neither

Here, in fig 27.20a,resistances are connected in series because they are wired one after another in a chain.

Hence, Series arrangement is shown below.

Here, in fig27.20b,resistances are connected in parallel because they are not wired one after another in a chain.

Hence, parallel arrangement is shown below.

Here, in fig27.20c,resistances are connected in parallel because they are not wired one after another in a chain.

Hence, parallel arrangement is shown below.

Therefore, if resistances are connected in a chain, they are in series, and the ones, which are not, are in parallel.

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Most popular questions from this chapter

Question: A controller on an electronic arcade game consists of a variable resistor connected across the plates of a0.220μFcapacitor. The capacitor is charged to 5.00 V, then discharged through the resistor. The time for the potential difference across the plates to decrease to 0.800 Vis measured by a clock inside the game. If the range of discharge times that can be handled effectively is from10.0μsto 6.00 ms, what should be the (a) lower value and (b) higher value of the resistance range of the resistor?

Each of the six real batteries in Fig. 27-68 has an emf of20Vand a resistance of4.0Ω. (a) What is the current through the (external) resistanceR=4.0Ω? (b) What is the potential difference across each battery? (c) What is the power of each battery? (d) At what rate does each battery transfer energy to internal thermal energy?

You are to connect resistors R1and R2, withR1>R2, to a battery, first individually, then in series, and then in parallel. Rank those arrangements according to the amount of current through the battery, greatest first.

(a) In electron-volts, how much work does an ideal battery with a 12.0 V emf do on an electron that passes through the battery from the positive to the negative terminal? (b) If 3.40×1018electrons pass through each second, what is the power of the battery in watts?

In Figure, circuit section ABabsorbs energy at a rate of 50 W when current i= 1.0 Although it is in the indicated direction. Resistance R= 2.0 Ω. (a) What is the potential difference between Aand B? Emf device Xlacks internal resistance.

(b) What is its emf? (c) Is point Bconnected to the positive terminal of Xor to the negative terminal?
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