Answered: 30. How many amps of current will flow…

30. How many amps of current will flow through a circuit that has a 4-ohm resistor and is powered by two 8-volt batteries? a. 2 amps b. 4 amps C. 12 amps d. 32 amps

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 70PQ

See similar textbooks

Related questions

Q: 2) Read the section in the book on Kirchoff's Voltage Law. Use the picture below to answer the…

A: Applying Junction rule at junctions J1, J2, J3, J4, J5 and J6 ;

Q: An electric car accelerates for 9.9 s by drawing energy from its 340-V battery pack. During this…

A: Total charge supply by battery pack,

Q: 10. What is the resistance of a circuit with 30V and 2A? 11. What is the resistance of a circuit…

A: 10 ) Using ohms law V = IR 30= 2×R R = 15 ohm

Q: What makes electricity dangerous. The high current or the high voltage. Explain.

Q: 3. Which of the following statement is true? a) Current can exist without voltage c) Current can…

A: Without any voltage in a circuit, the current cannot exist, because the voltage makes the current…

Q: 39. A 6.0-V battery delivers a 0.50-A current to an electric motor connected across its terminals.…

A: given voltage of battery V = 6.0 V current I = 0.50 A hence we know power delivered to the motor P =…

Q: 8. An operating 100.-watt lamp is connected to a 120-volt outlet. What is the total electrical…

A: Given data: Power (P) = 100 W Voltage (V) = 120 V Time (t) = 60 s Required: Total electrical energy…

Q: Vab=40V FIND I2,I3, Iy

Q: 22. A series circuit has 3 resistors. The current through one resistor is 100 amps. How much current…

A: Given Data : The Current through one of the resistors is given as I = 100 amp. The voltage of the…

Q: State and define household unit of electricity.

A: Household unit of electricity is kWh (kilo Watt -hour) .1kWh is equal to energy utilized at a rate…

Q: Electric Current/ Ohm's Law a Calculate the charges that passes a cross- a. section in a circuit in…

Q: Question 2 In a parallel circuit, certain general rules may be stated with regard to quantities of…

A: When the electronic components like bulbs, LEDs are connected in parallel, then the voltage remains…

Q: An electric current of 210 amperes passes through the starter device in a car engine, if the voltage…

Q: 8. To measure small current, the Leads should be connected to A and B C and D A and D FLUKE 79…

A: * To measure small current (of the order of mA), the lead should be connected to A and D. i.e, lead…

Q: Write a diagram that shows it has voltage,current , and resistance altogether.

A: Answer:- A diagram that shows it has voltage, current and Resistance altogether. The relationship…

Q: Question: A 60 Watt lightbulb is attached to a 110 V circuit. How many electrons pass through the…

A: Given data :- Power P = 60 Watt Applied Voltage V = 110 V time t = 6 hours = 21600 s

Q: To 'short circuit' something means there is an alternate path of less resistance for the current to…

Q: 13. What is the resistance of a circuit with 220V and 4A? 14. What is the resistance of a circuit…

A: 13. V = 220 V I = 4 A From ohm's law V = IR Therefore, R = V/I R = 220/4 R = 55 Ω

Q: 10. Which of the following represents the flow of current in an electric cicuit? A.Voltage…

A: Physicists often speak of conventional current as the direction that positive charge moves through a…

Q: 6. Ohm's Law says: a circuit, proportional, voltage, The current, in, directly, proportional, is,…

A: In this question we have to rearrange the statements given. Please give positive feedback if the…

Q: Electric Hazards and the Human Body• Define thermal hazard, shock hazard, and short circuit.•…

A: Thermal Hazards are the hazards which harm the temperature of body and can alter temperature of body…

Q: 5.what is referred to as the interaction of charges in motion from one region to another A.Charge…

A: Resistance is the property of a material that opposes the flow of current through it. The flow of…

Q: Lucía, a young woman from Veracruz, uses a hair straightener every morning to straighten it and…

Q: 12.5 Coulombs of charge flows through a 5 kilo-ohm resistor in 8 minutes. 1. What is the electric…

Q: 6. Alternating current is the flow of electric charge in a single direction. 7. The SI unit for…

Q: 1. A 12 volt car battery is connected to a wire carrying 60 amperes in a closed pop. The wire passes…

A: Given Magnetic field = B = 0.2T +x axis Current = I = 60 amp Voltage = V = 12 V Length = L = 7…

Q: 6. Which of the following SI units were named after famous scientists? Select all that apply. amps…

A: Amps :- Amps is the short form of ampere. Ampere is the SI unit of current. Ampere is…

Q: ☐☐ 41. An airplane deicer melts 0.10 kg of ice from the wings of an airplane each minute. The deicer…

Q: State and define the SI unit of electrical power.

A: Electric power is the rate, per unit time, at which electrical energy is transferred by an electric…

Q: A 60-W incandescent light bulb and a 15-W compact fluorescent light bulb (CFL) produce the same…

A: Given Power of incandescent light bulb = 60 W Power of CFL= 15 W Operating voltage for both devices…

Q: Arc welding uses electric current to make an extremely hot electric arc that can melt metal. The arc…

A: Given: Arc welding uses electric current to make an extremely hot electric arc that can melt metal.…

Q: A car stereo pulls 1.81 A from a cars battery. if the car has a voltage of 12 v, how much power does…

A: Given: The current drawn from the battery is 1.81 A. The voltage of the battery is 12 V.

Q: Electron guns are used in X-ray tubes. The electrons are accelerated through a relatively large…

Q: A particle accelerator sends high-velocity charged particles down an evacuated pipe. Explain how a…

A: A charged particle travelling at high speeds generates a magnetic field that wraps around the…

Q: A current of 0,5 A flows for 20 s through a small electric motor. How much charge has passed?

Q: 4. A 350 V energy source delivers 450 mA for 1 hour. How much energy in joules does this represent?

A: voltage (V) = 350 volts Current (I) = 450 mA = 0.45 A Time (t) = 1 hour = 3600 seconds

Q: 30. How many amps of current will flow through a circuit that has a 4-ohm resistor and is powered by…

A: Data Given. Supply voltage ( V ) = two 8 volt batteries means , V = 16 v Resistance ( R ) = 4 ohm…

Q: A circuit connected to a 12 V battery consists of three light bulbs connected in series. If a fourth…

A: On adding 4th bulb in circuit net resistance will increase due to which current will decrease .

Q: 12. Give two examples of electrical devices that are based on transistors.

Q: Two students calculate the charge flowing through a circuit. The first student concludes that 300 C…

A: Current, I = 5 A First student : charge, q = 300 C , time t = 1 min Second student : number of…

Q: A series DC motor has a resistance of 7 Q between its terminals. The motor runs at 1,259 rpm at 230…

Q: Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can…

A: Given In part a the battery is 56 A-h, 14 V In part b the battery is 1.1 A-h, 1.7 V We have to…

Q: If a battery acts like an electron pump and wires act like electron pipes, what does the word…

A: This question can be easily solved by cleaning the basic concepts of current, voltage and…

Q: Question 9 A constant inductance of 1 henry and a variable resistance R are connected in series with…

Q: 7. Which of the forms below quantify electrical power? Check any that apply. OP=VIR OP = VI OP= OP…

A: We need to tell which of the given terms quantify electrical power.

Q: Mag Light flashlights use four batteries to produce 6 volts. The bulbs have a resistance of 8 ohms.…

A: Ohms law states that the current (I) through a conductor is directly proportional to the voltage…

Question

30. How many amps of current will flow through a circuit that has a 4-ohm resistor and is powered by two 8-volt
batteries?
a. 2 amps
b. 4 amps
C.
12 amps
d. 32 amps

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

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

Three identical 60.0-W, 120-V lightbulbs are connected across a 120-V power source as shown in Figure P28.72. Assuming the resistance of each lightbulb is constant (even though in reality the resistance might increase markedly with current), find (a) the total power supplied by the power source and (b) the potential difference across each lightbulb.
Two lightbulbs are each connected to a voltage of 120 V. One has a power of 25 W, the other 100 W. (a) Which lightbulb has the higher resistance? (b) Which lightbulb carries more current?
ohm's law states that the current flowing in a fixed resistor is directly proportional to the applied voltage. when 30 volts is applied accross a resistor, the current flowing through the resistor is 2.40x10^-3 amperes. a. Determine the constant of proportionality between voltage and current. b. Determine the current when applied voltage is 52Volts. c. Determine the voltage when the current is 3.60x10^-3 amperes.
ANSWER ONLY NUMBER 4 3. A voltage of one volt applied across a resistance of one ohm produces a current of oneampere. What happens to the current if the voltage is doubled and the resistance ishalve? a. It doubles.b. It increases four times.c. It increases three times.d. It remains the same. 4. In Question 3, what is the current in amperes if the voltage is halved and the resistance is doubled?a. 1 ampereb. 0.33 amperec. 0.5 ampered. 0.25 ampere
4. Which of the following statements is true of the voltameters? A. Voltmeter 1 and voltmeter 2 will read the same voltage. B. Voltmeter 1 will read 6 V. C. Voltmeter 2 will read 6 V. D. Voltmeter 2 will read the correct voltage across the 3Ω resistor. E. Both voltmeters will read the correct voltage across the 6Ω resistor.
You are measuring the current of a certain component in a circuit board and it reads negative (-) 8.77MA. What does it means? a. There is an error on the digital multimeter. b. The numerical value of the current is negative. c. There is an error in the circuit. It is short circuit. d. It indicated an inverse direction. You have switched the positive and negative terminal of the DMM.
es les nd 2. Three identical resistors are connected in parallel to a single battery. The current through the resistors must be... A. one-third of the current through the battery. B. the same for the resistors as for the battery. C. different for each resistor. D. higher for one resistor and lower for the other two.
23. Answer the following questions about total resistance in series and parallel circuits. a. What is the total resistance of a 30 2 resistor and a 10 2 resistor in series? b. What is the total resistance of a 30 resistor and a 102 resistor in parallel? R=(1/R+1/R+..^-1 MacBook Pr
24. An electric circuit is consisted of a 8 ohm resistor and a 4 ohm resistor connected in series with a battery of potential difference 24 V. What is the ratio of powers dissipated in the resistors of 8 ohm and 4 ohm, P8 ohm⁄P4 ohm?A. 4 B. 16C. 2 D. 825. What is the total power dissipated in the electric circuit of question 24?A. 48 W B. 36 WC. 40 W D. 32 W
An 80-2 resistor and a 20-2 resistor are connected in parallel, and then this combination is connected in series with a 32-2 resistor and a 24-V battery. An ammeter to measure the current through the 80- Q, and a voltmeter to measure the potential difſerence across the 32 Q is needed. 1. Draw the circuit with the meters in place. 2. What is the total resistance of the circuit? 3. What current flows through the 32-2 resistor? 4. What is the difference of potential across the 32-2 resistor? Across the 80-2 resistor? 5. What is a fuse and how does it protect a circuit or device to which it is connected? 6. Show using diagrams how using only 2 Q resistors the following resistances can be made: ( a ) 0.5 Ω, (b) 1 Ω; (c) 3 Ω; ( d) 5 Ω. 7. Three wires in a circuit meet in a common point. The currents flowing in two of them are 2 A and 3 A respectively. What are the possible values of the current in the third wire? Explain your answer [drawings would help]. MacBook Air 4. 5. 6. 8. dele Q RI Y.…
10. Two resistors are connected to a DC battery as shown. R1 = 5.00 Ohms and R2 = 10.0 Ohms. If the current through R 1 is 10.0 A then the current through R 2 must be which of these? a. 10.0 Amperes b. 5.00 Amperes c. 20.0 Amperes d. 150 Amperes e. 50.0 Amperes
1. Four resistors 200Ω, 700Ω 1kΩ and 1.2kΩ connected in series. Find the equivalent resistance, thecurrent in each resistor and the potential difference across each resistor if the network is connectedto a power source 9V. Draw the Circuit Diagram. 2. Solve question number 1 but this time connect the given resistors in parallel.