Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

The diagram below shows a typical household circuit. The appliances (lights, tel

ID: 2158756 • Letter: T

Question

The diagram below shows a typical household circuit. The appliances (lights, television, toaster, etc.) are represented by boxes labeled 1, 2, 3, and so on. The fuse, or circuit breaker, shown in the diagram is a switch intended to shut off the circuit automatically if the wires become too hot because the current flowing in the circuit is too large. Note: Although houses in the United States use alternating current (AC), which differs in some important ways from the direct current (DC) we have been studying, you can still use the model you developed in answering these questions. What happens to the current flowing through the fuse when more appliances are added to the circuit? Describe evidence from this lab for your answer. Does the current flowing through element 1 change when elements 2 and 3 are added to the circuit? Describe evidence from this lab for your answer. Is this model consistent with your observations of everyday household electricity? For example, what happens to the brightness of a light bulb in a room when a second one is turned on? What may happen to the fuse if too many appliances are added to the circuit? Why? What kind of circuit connection for elements 1, 2, and 3 is shown in the diagram?

Explanation / Answer

a) the current through the fuse increases b) no c) yes d) the fuse may burn out due to overloading (too much current) e)parallel