Consider the section 4 circuit with two batteries in parallel. What inconsistenc
ID: 3161876 • Letter: C
Question
Consider the section 4 circuit with two batteries in parallel. What inconsistencies arise when you perform Kirchoff's Laws on this circuit if the batteries don't have the same voltage? What is being neglected in the circuit diagram that resolves these insistences? Why do we usually neglect this issue when drawing circuit diagrams?
Physics 2CL abo Manual Lab 3 4 Series and Parallel In this section you will explore how configuring batteries and resistors in series and parallel affects the total resistance and current in a circuit. Start by examining the result of battery configurations with a single light bulb. Assemble each of the three circuits 1 and note the relative bulb brightness Figure in each circuit Circuit A brightness compared to reference: uch Circuit B brightness compared to reference: a lit bit by ghter Sanne. Reference Figure 1: Simple battery configurations NOTE: To avoid draining the batteries please do not leave the circuit connected for extended periods of time. Now examine different bulb configurations. Assemble the circuits shown in Figure 2 on the next page and note the relative bulb brightness in each circuit. Circuit A brightness compared to reference dimmer Circuit B brightness compared to reference: Same Page 33Explanation / Answer
The inconsistency is that the sum of potential difference across a loop must be zero whuch would not be satisfied if the voltages of the battery are different.
We have nelected the resistance of the wire (thus neglecting the potential difference across the wire).
We do this because the resistance of wire is small and this makes our calculation fairly accurate and simpler.