28. Which of the following characteristics are true about a parallel circuit? 1. The current that goes through each resistor is the same. 2. The drop in the voltage across each resistor is proportional to the resistance of that resistor. 3. The current in the circuit is equal to the sum of the currents flowing in each part of the circuit. O 1 only O 1 and 3 O1 and 2 O 3 only

28. Which of the following characteristics are true about a parallel circuit? 1. The current that goes through each resistor is the same. 2. The drop in the voltage across each resistor is proportional to the resistance of that resistor. 3. The current in the circuit is equal to the sum of the currents flowing in each part of the circuit. O 1 only O 1 and 3 O1 and 2 O 3 only

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 8CQ: The [R drop across a resistor means that there is a change in potential or voltage across the...

See similar textbooks

Similar questions

Referring to the example combining series and parallel circuits and Figure 10.16, calculate in the followingtwo different ways: (a) from the known values of Iand I2 (b) using Ohm’s law for R2 In both parts, explicitlyshow how you follow the steps in the Problem-Solving Strategy: Series and Parallel Resistors.
Do batteries in a circuit always supply power to a circuit, or can they absorb power in a circuit? Give an example.
The [R drop across a resistor means that there is a change in potential or voltage across the resistor. Is there any change in current as it passes through a resistor? Explain.
Some strings of holiday lights are wired in series to save wiring costs. An old version utilized bulbs that break the electrical connection, like an open switch, when they burn out. If one such bulb burns out, what happens to the others? If such a string operates on 120 V and has 40 identical bulbs, what is the normal operating voltage of each? Newer versions use bulbs that short circuit, like a closed switch, when they burn out. If one such bulb burns out, what happens to the others? If such a string operates on 120 V and has 39 remaining identical bulbs, what is then the operating voltage of each?
Knowing that the severity of a shock depends on the magnitude of the current through your body, would you prefer to be in series or parallel with a resistance, such as the heating element of a toaster, if shocked by it? Explain.
The following statements are related to household circuits and electrical safety. Determine whether each statement is true (T) or false (F). (a) Circuit breakers are wired in series with the outlets they protect. (b) A circuit breaker rated at 20 A provides a constant current of 20 A to each outlet in the circuit. (c) Three-wire electrical cords help prevent dangerous electrical shocks by grounding the case of a device.
Consider the circuit shown below. (a)Determine the equivalent resistance and the current from the battery with switch S1 open, (b) Determine the equivalent resistance and the current from the battery with switch S1 closed.
The IR drop across a resistor means that there is a change in potential or voltage across the resistor. Is there any change in current as it passes through a resistor? Explain.
A 0.0200- ammeter is placed in series with a 10.00- resistor in a circuit, (a) Draw a circuit diagram of the connection, (b) Calculate the resistance of the combination, (c) If the voltage is kept the same across the combination as it was through the 10.00- resistor alone, what is the percent decrease in current? (d) If the current is kept the same through the combination as it was through the 10.00-resistor alone, what is the percent increase in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss.
If the drift velocity in a conductor is so small, then why does an auto battery influence the starter as soon as you turn the ignition switch?
Integrated Concepts Use the ECG in Figure 20.34 to determine the heart rate in beats per minute assuming a constant time between beats. Figure 20.34 A lead II ECG with corresponding arterial blood pressure. The QRS complex is created by the depolarization and contraction of the ventricles and is followed shortly by the maximum or systolic blood pressure. See text for further description.
Consider the circuit shown below. The terminal voltage of the battery is V = 18.00 V. (a) Find the equivalent resistance of the circuit, (b) Find the current through each resistor, (c) Find the potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the power supplied by the battery.