hiya i need help with this homwork i carried out the experiment in lesson and i took down the readings V and A using the multimeter, what ever the teacher wrote i have written below if anyone would help me thanks in advance.............here goes. (i have attacted the file which has the readings i recorded while carrying out the experiment.
plot the graph of Current (yaxis) against Voltage (xaxis) on a sheet of linear graph paper. From this graph the resistance can be found by drawing a line of best fit and then measuring the gradient and inverting
it. (N.B. The actual gradient of the graph di/dv is called the conductance. The SI unit is the Siemen or S for short.) Once you have calculated a value, measure the value of the resistor using the multimeter and compare it with
your calculation.
Question 1: How does the calculated value of the resistor obtained from the gradient of the graph compare to the measured value of the resistor?
(DMM i think is the Digital multimeter i used and all the readings are attacted)
Value from graph:
Value from DMM:
Question 2: What could be the cause of any variation in the values?
Question 3: What was the maximum power dissipated by the resistor during your tests?
plot the graph of Current (yaxis) against Voltage (xaxis) on a sheet of linear graph paper. From this graph the resistance can be found by drawing a line of best fit and then measuring the gradient and inverting
it. (N.B. The actual gradient of the graph di/dv is called the conductance. The SI unit is the Siemen or S for short.) Once you have calculated a value, measure the value of the resistor using the multimeter and compare it with
your calculation.
Question 1: How does the calculated value of the resistor obtained from the gradient of the graph compare to the measured value of the resistor?
(DMM i think is the Digital multimeter i used and all the readings are attacted)
Value from graph:
Value from DMM:
Question 2: What could be the cause of any variation in the values?
Question 3: What was the maximum power dissipated by the resistor during your tests?
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