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Chapter 28: Q. 43 (page 792)

You have a 2.0鈩�resistor, a 3.0鈩�resistor, a 6.0鈩�resistor, and a 6.0Vbattery. Draw a diagram of a circuit in which all three resistors are used and the battery delivers 9.0 W of power.

Short Answer

Expert verified

Diagram of the circuit

Step by step solution

01

Given information

We have given

Resistances =2鈩�,3鈩�,6鈩�

Battery Voltage =6V

Power =9W

We have to draw the correct circuit diagram.

02

Simplify

we know that power delivered by the battery will be,

P=V2RR=V2P=369=4鈩�

we should arrange the resistance just like that we get total equivalent is localid="1649324068838" 4鈩�.

There is only one method if we arrange the two of them in parallel and one in series then,

localid="1649324073026" 1Req1=13+16Req1=2鈩�Req=2+2=4鈩�

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Most popular questions from this chapter

The switch in FIGURE EX28.36 has been in position a for a long time. It is changed to position b att=0 . What are the charge Qon the capacitor and the current Ithrough the resistor (a)immediately after the switch is closed? (b)att=50渭s ? (c)at t=200渭s?

The five identical bulbs in FIGURE EX28.11are all glowing. The battery is ideal. What is the order of brightness of the bulbs, from brightest to dimmest? Some may be equal.

A.P=T>Q=R=S

B.P>Q=R=S>T

C.P=T>Q>R=S

D.P>Q>T>R=S

What is the magnitude of the potential difference across each resistor in FIGURE EX28.6?

A metal wire of resistance Ris cut into two pieces of equal length. The two pieces are connected together side by side. What is the resistance of the two connected wires?

You鈥檝e made the finals of the Science Olympics! As one of your tasks, you鈥檙e given 1.0 g of aluminum and asked to make a wire, using all the aluminum, that will dissipate 7.5 W when connected to a 1.5 V battery. What length and diameter will you choose for your wire?
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