Question

3.4 Preliminary Assignment 1) The following table contains current/voltage pairs of points as determined from an experiment to verify Ohm's Law. A) Use graph paper and plot these points as voltage vs. current B) Does this device follow Ohm's Law? How do you know? C) Determine the value of the resistor used in this circuit. Current (Amps) -0.227 -0.180 -0.070 -0.022 +0.054 +0.126 +0.185 +0.258 Voltage (Volts) -2.320 -1.847 -0.721 -0.203 +0.586 +1.329 +1.937 +2.680 resistor. The 2) A (20.10.2), resistor is connected in parallel with a (39.910.4) resistors are connected to a (2.900.03) V battery. A) Find the equivalent resistance (including uncertainty). B) Calculate the total current in the circuit (including uncertainty). C) Determine the value of the current in each branch of the circuit (including uncertainty).

Answer 1

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® this device follow's ohn's law. → because of I linear with v. © R=10 Ohms approximately for all value , Resistor measured as below,
Ohms law states that,

R= V/I

I	V	R
-0.227	-2.32	10.22026432
-0.18	-1.847	10.26111111
-0.07	-0.721	10.3
-0.022	-0.203	9.227272727
0.054	0.586	10.85185185
0.126	1.329	10.54761905
0.185	1.937	10.47027027
0.258	2.68	10.3875969