Lab: Circuit Design Answers

Perform calculations using the circuit illustrated. Round all the numerical answers to the tenths place.

voltage = 20 V, resistance = 20 Ω: [___] A

voltage = 50 V, resistance = 20 Ω: [___] A

As the resistance increased under 25 V, the current [___]. Compared to calculated currents, experimental currents proved to be [___]. Currents varied proportionally according to resistance: 10 Ω of resistance produced a current of [___] A, while 100 Ω of resistance produced a current of [___] A.

In Hypothesis #1, the [___] was intentionally manipulated as the independent variable.

In Hypothesis #2, the [___] was intentionally manipulated as the independent variable.

The dependent variable measured in both cases was the [___].

voltage = 5 V, resistance = 20 Ω: [___] A

voltage = 5 V, resistance = 20 Ω: [___] A

As the resistance increased under 25 V, the current [___]. Compared to calculated currents, experimental currents proved to be [___]. Currents varied proportionally according to resistance: 10 Ω of resistance produced a current of [___] A, while 100 Ω of resistance produced a current of [___] A.

The total resistance in the circuit is [___] Ω.

Based on the graph, what happens to current as resistance increases? [___]

[___] Ω

A simple circuit within a laptop has a single resistor with a resistance of 0.1 Ω and requires a current of 50 mA. Select the voltage that would allow the computer to function correctly.

voltage = 20 V, resistance = 20 Ω: [___] A

As the resistance increased under 25 V, the current [___]. Compared to calculated currents, experimental currents proved to be [___]. Currents varied proportionally according to resistance: 10 Ω of resistance produced a current of [___] A, while 100 Ω of resistance produced a current of [___] A.

The expected current at point A is [___] A.

This type of graph shows which type of relationship between the two variables? [___]

voltage = 50 V, resistance = 20 Ω: [___] A

As the resistance increased under 25 V, the current [___]. Compared to calculated currents, experimental currents proved to be [___]. Currents varied proportionally according to resistance: 10 Ω of resistance produced a current of [___] A, while 100 Ω of resistance produced a current of [___] A.