Chapter 19, Problem 78GP

& Jesse needs to determine the resistance of a resistor. Which method should he use? If you think that more than one of the described methods is useful, compare your choices and explain which would give the most accurate result Describe any assumptions that you made The final step in all methods is to calculate the resistance of the resistor as

$R=\frac{**\#x25B3;V}{I}$

a. Connect a voltmeter to a battery’s terminals. Record the voltage reading $△V$

Then (in a different experiment) connect the battery, the resistor, and an ammeter in series. Record the current reading /

b. Connect a battery, the resistor, and an ammeter in series and connect a voltmeter in parallel to the resistor. Record the current reading / and the voltage reading $△V$.

c. Connect a battery, the resistor, an ammeter, and a voltmeter in series. Record the current reading / and the voltage reading $△V$

d. Connect a battery, the resistor, and an ammeter in series and connect a voltmeter in parallel to the ammeter. Record the current reading / and the voltage reading $△V$

e. Connect a battery, the resistor, and an ammeter in series. Record the current reading / Then (in a different experiment) connect the resistor to the battery and a voltmeter in parallel to the resistor. Record the voltage reading $△V$