PART II - RESISTORS IN SERIESConsider (but do not yet build) the circuit shown in the circuit diagram to the left,which we will call Circuit 2. Make sure you are using Bert bulbs. You may wantto wire two batteries in series rather than use a single battery.4. Predict:a) How will the brightness of bulb B₂ compare to the brighness to bulbB2B?XB2AEYB2BᏃb) How will the brightness of bulb B2A compare to the brightness of bulb B₁ from Circuit 1?c) How will the currents at points X, Y, and Z be related?d) How will the current at point X in this circuit compare to the current at point X from Circuit 1?

Answered: Image /qna-images/answer/55c0f288-0eae-409a-8d2a-28ea8143211c.jpg

Answered: PART II - RESISTORS IN SERIES Consider…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter23: Series And Parallel Circuits

Section23.1: Simple Circuits

Problem 7PP

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Consider the circuit in Figure 27.17 and assume the battery has no internal resistance. (i) Just after the switch is closed, what is the current in the battery? (a) 0 (b) /2R (c) 2/R (d) /R (e) impossible to determine (ii) After a very long time, what is the current in the batten? Choose from the same choices. Figure 27.17 (Quick Quiz 27.5) How does the current vary after the switch is closed?
Would your headlights dim when you start your car's engine if the wires in your automobile were superconductors? (Do not neglect the battery’s internal resistance.) Explain.
Using your understanding of the nature of internal energy and temperature, explain why we might expect the resistance of a solid to increase if its temperature increases.
If you were 10 design an electric healer using Nichrome wire as the healing element, what parameters of the wire could you vary to meet a specific power output such as 1 000 W?
CASE STUDY Capacitors for a Thompson coil The Thompson coil experimenters (page 829) claimed they used six identical capacitors connected in parallel. In Example 27.1, we found that the equivalent capacitance is 94 F. What is the capacitance of each capacitor?
Choose the words that make each statement correct. (i) When two or more resistors are connected in series, the equivalent resistance is always [(a) greater than; (b) less than] any individual resistance. (ii) When two or more resistors are connected in parallel, the equivalent resistance is always [(c) greater than; (d) less than] any individual resistance.
Apply the junction rule to Junction b shown below. Is any new information gained by applying the junction rule at e?
A person with body resistance between his hands of 10.0k accidentally grasps the terminals of a20.0-kV power supply. (Do NOT do this!) (a) Draw a circuit diagram to represent the situation, (b) If the internal resistance of the power supply is 2000 , what is thecurrent through his body? (c) What is the power dissipated in his body? (d) If the power supply is to be made safe by increasing its internal resistance, what should the internal resistance be for the maximum current in this situation to be 1.00 mA or less? (e) Will this modification compromise the effectiveness of the power supply for driving low- resistance devices? Explain your reasoning.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Six resistors, all having the same temperatures and compositions, are each attached to a battery with voltage V to form a simple circuit. The resistors have different lengths, l, but the same diameters. Rank the circuits according to the current that flows through the resistor from smallest to greatest. If two (or more) circuits have the same current flowing, give them the same ranking. Explain the rationale you used to establish your rankings. Circuit 1: l = 2 cm; V = 3 V Circuit 2: l = 2 cm; V = 6 V Circuit 3: l = 1 cm; V = 3 V Circuit 4: l = 1 cm; V = 6 V Circuit 5: l = 3cm; V = 2 V Circuit 6: l = 3cm; V = 6 V
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?
It was stated that the motion of an electron appears nearly random when an electrical field is applied to the conductor. What makes the motion nearly random and differentiates it from the random motion of molecules in a gas?
Referring to the example combining series and parallel circuits and Figure 21.6, calculate I3in the following two different ways: (a) from the known values of I and I2 ; (b) using Ohm’s law for R3. In both parts explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors.

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