I would like to allow everyone access to download my solutions calculator.

It's a programmed spreadsheet that allows you to input your specific variables and it will give you the solution.

- This is provided just in case you're in a time crunch.

It's a programmed spreadsheet that allows you to input your specific variables and it will give you the solution.

- This is provided just in case you're in a time crunch.

1. A current of 79.0 mA exists in a metal wire.

(a) How many electrons flow past a given cross section of the wire in 10.8 min?

_____electrons

(b) In what direction do the electrons travel with respect to the current?

-The magnitude is zero.

-opposite direction

-same direction

Download Calculator for Ch 17 Problem 1

2. The current supplied by a battery in a portable device is typically 0.183 A. Find the number of electrons passing through the device in two hours.

_____electrons

Download Calculator for Ch 17 Problem 2

3. An electric heater carries a current of 17.0 A when operating at a voltage of 3.30 X 10

^{2}V. What is the resistance of the heater?

Download Calculator for Ch 17 Problem 3

4. Nichrome wire of cross-sectional radius 0.781 mm is to be used in winding a heating coil. If the coil must carry a current of 10.00 A when a voltage of 2.70 X10

^{2</ sup> V is applied across its ends, find the following.}

(a) the required resistance of the coil

_____Ω

(b) the length of wire you must use to wind the coil

_____m

Download Calculator for Ch 17 Problem 4

5. A wire of diameter 0.550 mm and length 30.0 m has a measured resistance of 3.00 Ω. What is the resistivity of the wire?

_____Ω · m

Download Calculator for Ch 17 Problem 5

6. A potential difference of 10 V is found to produce a current of 0.45 A in a 3.6 m length of wire with a uniform radius of 0.35 cm. Find the following values for the wire:

(a) the resistance

_____Ω

(b) the resistivity

_____ Ω· m

Download Calculator for Ch 17 Problem 6

7. If a certain silver wire has a resistance of 3.00 Ω at 15.0°C, what resistance will it have at 29.0°C?

_____Ω

Download Calculator for Ch 17 Problem 7

8. Suppose your waffle iron is rated at 1.25 kW when connected to a 1.80 X 10

^{2</ sup> V source.}

(a) What current does the waffle iron carry?

_____A

(b) What is its resistance?

_____ Ω

Download Calculator for Ch 17 Problem 8

9.If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost?

(a) burning a 40 W light bulb for 24 h straight

$_____

(b) operating an electric oven for 4.0 h if it carries a current of 20.0 A at 220 V

$_____

Download Calculator for Ch 17 Problem 9

10. A high-voltage transmission line with a resistance of 0.30 /km carries a current of 1040 A. The line is at a potential of 660 kV at the power station and carries the current to a city located 160 km from the station.

(a) What is the power loss due to resistance in the line?

_____W

(b) What fraction of the transmitted power does this loss represent?

_____%

Download Calculator for Ch 17 Problem 10

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ReplyDeleteI am nothing compared to you A-Ky(r)le

DeleteOne year later and you're STILL da best

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