1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)–(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; %3D %3D (b) absorbing; (с) 80 W. 1 + 1 2 (а) р %3D vi (b) р %3D — vi 1 1 2 (c) p = - vi (d) р %3D vi

1.5 Assume that a 20 V voltage drop occurs across an element from terminal 2 to terminal 1 and that a current of 4 A enters terminal 2. a) Specify the values of v and i for the polarity references shown in Fig. 1.6(a)–(d). b) State whether the circuit inside the box is absorbing or delivering power. c) How much power is the circuit absorbing? Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A; circuit 1.6(b): v = -20 V, i = 4 A; circuit 1.6(c): v = 20 V, i = -4 A; circuit 1.6(d): v = 20 V, i = 4 A; %3D %3D (b) absorbing; (с) 80 W. 1 + 1 2 (а) р %3D vi (b) р %3D — vi 1 1 2 (c) p = - vi (d) р %3D vi

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s.…

A: Voltage, V = 30 VC = 3 FR = 2 ohmCurrent at t = 7.5 s is to be calculated.

Q: Consider a simple circuit consisting of a battery, a closed switch, and a resistor. The voltage…

A: Write the expression for resistance

Q: Consider the circuit shown in the diagram: [a] Use Kirchhoff's junction rule at junction b to…

A: in this question we use kirchoff's law.

Q: Find the value of voltage that allows you to know the value of RC, in a load curve of a capacitive…

A: The voltage across the capacitor in a RC circuit is given by : V = 5×(1 - e-tRC)

Q: A large capacitor of 3000 µF is charged by a constant current. After 1 minute it reaches a voltage…

A: Given Capacitance C = 3000 μF = 3000×10-6 F Time t = 1 min = 60 seconds Voltage V…

Q: Find the equivalent resistance at terminals a-b in the given circuit. Assume R = 48 Q.

Q: = 3000 ohms and R2 = 4000 ohms are joined in series and connected to a 120-volt supply. The voltage…

A: We know that ohms law is given that V = IR where V is the voltage. I is the current. R is the…

Q: Assume that you want to measure the voltage on a circuit component and the multimeter that is used…

A: Given: Measurement range --- 0.2 V, 2V, 20V and 200 V It is given when u choose 2V range for the…

Q: A Direct Current Circuit (DC-Circuit) is composed of two R = 100 2 resistors, which bare placed in…

A: The circuit diagram for the mentioned arrangement in the question is:

Q: (b) Find the magnitude of the current and its direction in each resistor. R3: 21.0 N = X A 5.00 N X…

A: According to Kirchhoff's first law Algebraic sum of current at a junction is always zero

Question

100%

1.5
Assume that a 20 V voltage drop occurs across
an element from terminal 2 to terminal 1 and
that a current of 4 A enters terminal 2.
a) Specify the values of v and i for the polarity
references shown in Fig. 1.6(a)–(d).
b) State whether the circuit inside the box is
absorbing or delivering power.
c) How much power is the circuit absorbing?
Answer: (a) Circuit 1.6(a): v = -20 V, i = -4 A;
circuit 1.6(b): v = -20 V, i = 4 A;
circuit 1.6(c): v = 20 V, i = -4 A;
circuit 1.6(d): v = 20 V, i = 4 A;
(b) absorbing;
(c) 80 W.
1
+2
(а) р %3D vi
(b) р — — vi
•1
2
(с)р %3D — vi
(d) р %3D vi
Figure 1.6 A

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

what is the total resistance? Assume that the current enters one coraer and the sides of a cube. exits at the diagonally opposite corner. B. A cell with internal resistance of 1.0 o is connected in series withn5.0 oresistor and 3.0 N. The voltage across the 5 n resistor is 5 V. (al What current flows through the circuit? (b) What is the voltage across the 3 a resistor? iel What is the terminal voltage of the cell? (d) What is the emf of the cell? 9. There are 100 graduations In the scale of an ammeter with internal resistance of 0.18 n and intended to measure a current up to 10 A. (a) What is the value of each graduation? (b) Convert this to an ammeter that can measure up to 100 A. (c) How will the value of the graduations change? 10. There are 30 graduations in the scale of a voltmeter with an internal ading of 30 V.
a) Use voltage division to determine the voltage v, across the 40 N resistor in the circuit shown. 3.4 b) Use v, from part (a) to determine the cur- rent through the 40 N resistor, and use this current and current division to calculate the current in the 30 N resistor. c) How much power is absorbed by the 50 N resistor? 40 Q 50 Ω + v, 60 V 20 Ωξ 30 Ωξ 10 Ω 70 N Answer: (a) 20 V; (b) 166.67 mA; (c) 347.22 mW. + |
Ex. 14 : A potentiometer wire has a length of 4 m and resistance 42. What resistance must be connected in series with the potentionmeter wire and a cell of e.m.f. 2V having internal resistance 20 to get a potential drop of 10 3 V/cm along the wire ?
A small heater is used to keep critical components from getting too cold in space. The device yields an output of 87.5 kilocalories [kcal] of heat energy over a time span of 2 hours [h]. The circuit contains a 0.4 ohm [2] resistor and is 90% efficient. What is the input voltage in units of volts [V]?
How do you find the value of a resistance R1, in a circuit when the equivalent resistance is 40 ohms, given that: R2 = 12 ohm in series with R3 = 40 ohms whom combined are in parallel with R4 = 20 ohms, all in parallel to R1. And to find the current in each resistor, do I just apply the equation, I = V/R, given that the circuit runs on an 28 volt batt.
Refer to the circuit on the side. (a) Find the total resistance of the external circuit RT, considering an ohmmeter is connected at terminals 1 and 2. Refer to the figure on the side. (b) When an ideal battery of 10v is connected to terminals 1 and 2, what is the current passing through the 5 Ω resistor?
During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. V www R A Battery The measured value of the current is I = 2.8 ± 0.1 A and that of the voltage is V = 18 ± 0.4 V. The resistance of the circuit %3D %3D (in Q) can be calculated using the formula, R =V/I, Calculate the, a) Resistance (in Q) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in 2) in the resistance=
When a 200 ohm resistor, a 300 microfarad capacitor (uF) that's initially uncharged, and a 6-volt battery are wired in a series formation, what is the starting current, measured in milliamps (mA)?
Q 16 please
Question 1 a) Ina closed circuit, an electric current of intensity i goes through a resistor of resistance R. The electric potential at the edges of R is measured to be V. If now we write R would this generally bethe definition ofthe resistance quantity R, or the expression of Ohm's Law? Explain. b) We define the resistivity (via the familiar notation) as E 「了, Thus show that the resistance R can be written as, R =p! A here Lis the length ofthe resistor, and A is the cross-sectional area ofit. c) Let J the curent density (i/A). Express J in tems of the electron density n (electrons/m'), the electron drift velocity va, and the electron charge e.
A small heater is used to keep critical components from getting too cold in space. The device yields an output of 87.5 kilocalories [kcal] of heat energy over a time span of 2 hours [h]. The circuit contains a 0.6 ohm[Ω] resistor and is 90% efficient. What is the input voltage in units of volts [V]?
. A uniform wise of length one meter + resistance 22 is connected in series with a resistance of of 10802 and a Daniel cell of emf 1·.083 V having internal resistance of 152. Calculate the potential deop per mm & length required to balance potential length required to balance the potential Lifference 0.1mv.