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EE215_Lab1

# Wiggle gently and push with a little experience you

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Unformatted text preview: r. Record the value • Replace the 1.5 V battery with a 9 V battery. More set up Measurements and Questions: 2. d (2 points) • • Measure the voltage v across RM. Record the value. Measure the current i using your multimeter. Record the value. More set up • Connect the 9V battery and the 1.5 V battery in series across the mystery resistor RM. See Figure P2 ­3. Measurements and Questions: 2. e (2 points) • • Measure the voltage v across RM. Record the value. Measure the current i using your multimeter. Record the value 2. f (1 points) • Plot the three sets of voltage and current values you recorded on a graph. Do they make a straight line? 2. g (2 points) • Calculate the value of the mystery resistance RM using Ohm’s law for each set of data points. 2. h (2 points) • Take RM out of the circuit and measure its resistance with your multimeter. Write down the calculated values and the measured value. Compare to markings on the resistor. 2. i (2 points) • What is the error between the average of the calculated values and the measured value? Hint: Hint: calculated − measured x100% calculated Construction hints: Bend the resistor leads at right angles near the resistor body to make a U ­shape with a flat bottom, and € then insert the leads directly into breadboard holes. Make sure they go into the spring clips in the holes. Sometimes the springs don't want to let the leads in. Wiggle gently and push. With a little experience you will be able to tell when you have the leads in, and when you don't. You can do the same thing with wires. If you really like being neat, you...
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