Thermal energy is to be generated in a 0.133 Q resistor at the rate of 10.5 W by connecting the resistor to a battery whose emf is 1.5 V. (a) What potential difference must exist across the resistor? (b) What must be the internal resistance of the battery? (a) Number Units

Thermal energy is to be generated in a 0.133 Q resistor at the rate of 10.5 W by connecting the resistor to a battery whose emf is 1.5 V. (a) What potential difference must exist across the resistor? (b) What must be the internal resistance of the battery? (a) Number Units

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 17CQ: Resistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a...

See similar textbooks

Related questions

Q: How much energy is dissipated as heat during a two-minute time interval by a 5.4 kQ resistor which…

Q: Thermal energy is produced in a resistor at a rate of 108 W when the current is 3.74 A. What is the…

A: Electric power Electric Power is the rate that energy is supplied by a source or dissipated by a…

Q: Given the circuit, where the rate at which R1 is dissipating electrical energy is 20.0W. When the…

Q: A battery of e.m.f. 12.0 V, with an internal resistance of 3.0 Ω, is connected in series with a 15.0…

Q: If 5.0 × 1021 electrons pass through a 30.1 Q resistor in 10 min, what is the potential difference…

Q: In the figure, if I=1.5A and E-42V, then the value of the resistance R (in 2) is: a) 1.4 b) 4.7 c)…

A: I = 1.5 A E = 42 volts

Q: How much energy is dissipated as heat during a two- minute time interval by a 3.3 kN resistor which…

A: Energy dissipated as heat by the resistor having resistance 'R' having potential difference of 'V'…

Q: The heating coil in a toaster is made of nichrome wire with a radius of 0.275 mm. If the coil draws…

A: Given data: Radius (r) = 0.275 mm = 0.275×10-3 m Current (I) = 8.40 A Voltage (V) = 120 V…

Q: Foolishly trying to fish a burning piece of bread from a toaster with a metal butter knife, a man…

A: Given: V = 120 V

Q: On a sunny day, a rooftop solar panel delivers 60 W of power to the house at an emf of 17 V. How…

Q: In a discharge tube, the number of protons drifting across any cross-section is 1-0 x 1018 per…

A: Given : Number of protons drifting =1.0×1018 per secondNumber of electrons drifting =2.0×1018 per…

Q: At what rate is thermal energy generated in the 30 0 resistor given that ɛ = 33 V? 100 300 50 50 O…

A: Given: The emf of the battery is 33 V. The circuit diagram is given below.

Q: At what rate is thermal energy generated in the 30 Q resistor given that ɛ = 42 V? 102 302 ww O a.…

Q: If 5.0 × 1021 electrons pass through a 32.5 Q resistor in 10 min, what is the potential difference…

Q: A 20 V potential difference is applied across a series combination of a 10 Q resistor and a 30 N.…

A: Given that, Potential difference, V = 20 V Resistor 1, R1 = 10 ohms Resistor 2, R2 = 30 ohms We need…

Q: The heating coil in a toaster is made of nichrome wire with a radius of 0.300 mm. If the coil draws…

Q: Three resistors are connected in series to a 95.6 V battery: R1 = 3.39 Q, R2 = 9.19 N and R3 = 3.96…

A: The total voltage of the circuit will be, Here, I denote the current in the circuit and it will be…

Q: A resistor connected to a 3.0 V battery dissipates 1.0 W. If the battery is replaced by a 6.0 V…

Q: A power plant supplies a current of 4.80 x 10 A at 545 k V. After being transmitted down a few…

Q: A portion of Nichrome wire of radius 2.60 mm is to be used in winding a heating coil. If the coil…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

Q: Based on the figure, solve for the voltage drop across the resistor with a value of 7.5 kN. а. 0.6 V…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

A: solution

Q: Three resistors of 40 Ω, 60 Ω and 120 Ω are connected in parallel, and in this parallel group is…

Q: At what rate is thermal energy generated in the 30 Q resistor given that ɛ = 86 V? 10Ω 30n a. 82.18…

Q: How much current flows in a 1000 Ω resistor when there is a potential difference of 1.5 V?

A: Given data The resistance of the resistor is given as R = 1000 Ω. The potential difference is given…

Q: A 120 V potential difference is applied to a space heater whose resistance is 13.7 Ω when hot. At…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

A: Given , Power delivered to a resistor is P Current through resistor is I0…

Q: The power dissipated by a load resistor of 490 is 61W. If the "load" voltage across the resistor is…

A: According to question--- Given values-- power = 61 W. resistance R = 49 ohm. internal resistance r…

Q: A certain resistor dissipates 0.5 W when connected to a 3 V potential difference. When connected to…

Q: Find the current in the 6-Q resistor if the voltage across the 1-2 resistor is 6 V. E ww-ww 1.00 Ω…

A: The current in the 6 ohm resistor is 3 A.

Q: What is the current in the 15- W resistor when E= 9.0 V? 20 2 15 2 30 2

A: Given that the battery has voltage E =9 V. Here 15 ohm and 30 ohm are parallel. So, the equivalent…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

A: Option A is the right answer A. 118.8 P

Q: The power dissipated in a resistor R, carrying a current I and a potential difference Vab across its…

A: Given data The mathematical expression for the power dissipated is given as P = VabI. The…

Q: A Galvanometer has an internal resistance of 120 ohm with a maximum allowed current of 250 µA. If…

A: The expression to calculate shunt resistance is. S=IgGI-Ig

Q: 50 50 80 C.)1. the equivalent/total resistance 2. the current from the power supply 3. the current…

Q: Which of the following combinations of 4 Q resistors would dissipate 24 W when connected to a 12 V…

A: Given:- Resistance of each resistor is R=4Ω Voltage of the battery is V=12 V Total power dissipated…

Q: A person standing barefoot on the ground 20 m from the point of a lightning strike experiences an…

A: The potential difference, V=300 V The skin resistance, R=1.0 kΩ=1.0×103 Ω

Q: A 20 V battery is connected to a resistor. Neglecting the internal resistance of the battery, the…

A: Voltage of the battery, Vs=20 V Power delivered to the resistor, P=10 W

Q: A 500-W heating coil designed to operate from 100 V is made of Nichrome wire 0.500 mm in diameter.…

Q: At what rate is thermal energy generated in the 30 Q resistor given that ɛ = 59 V? 10Ω 302 O a.…

Q: Given that the delivered power to a resistor is equal to P when the cCurrent flowing in the resistor…

A: We know that P= I2 X R

Q: What is the equivalent resistor in E = 48.0 V, r = 0 1.00 Ω 3.00 Ω 7.00 Ω 5.00 Ω

A: Given data: R1 = 1.00 Ω R2 = 3.00 Ω R3 = 7.00 Ω R4 = 5.00 Ω r = 0 Required : The…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

Q: Two 3.8microF capacitors, two 2.2kohms resistors and a 16.0V source are connected in series.…

A: Resistors and capacitors are in series.

Q: Given V=IR and the current must be the same in both resistors, what is the potential difference…

Q: Thermal energy is produced in a resistor at a rate of 91.8 W when the current is 4.04 A. What is the…

Q: What must be the value of R in the network of resistors for the lotal resistance to be 10 12 ww ww…

Q: Consider two 24V batteries with internal resistances (a) r= 40, (b) r = 2n. • Which setting of the…

Q: The heating coil in an electric tea pot is made of nichrome wire with a radius of 0.225 mm. If the…

Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

Thermal energy is to be generated in a 0.133 O resistor at the rate of 10.5 W by connecting the resistor to a battery whose emf is 1.5 V.
(a) What potential difference must exist across the resistor? (b) What must be the internal resistance of the battery?
(a) Number
i
Units
(b) Number
i
Units

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

Part A

VIEW

Part (B)

VIEW

Step by step

Solved in 2 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

Consider a power plant is located 60 km away from a residential area uses Q-gauge (A=42.40mm2) wire ofcopper to transmit power at a current of I = 100.00 A.How much more power is dissipated in the copper wires than it would be in superconducting wires?
Two 3.8microF capacitors, two 2.2kohms resistors and a 16.0V source are connected in series. Starting from the uncharged state, how long does it take for the current to drop from its initial value to 1.50 mA
A person with a body resistance of 10 kΩkΩ between his hands accidentally grasps the terminals of a 14.0 kVkV power supply. 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 the situation just described to be 1.25 mAmA or less?
You want to design a heating element that dissipates 5 kW by maintaining a 75.0 V potential difference across the ends of Nichrome wire with a cross section of 2.5 × 10−6 m2 . How long should the wire be?
A certain flashlight is connected to a 6.0-Vemf battery and has an internal resistance of 0.100. What power does the 0.500 M load dissipate? If the internal resistance grows to 0.400 2, what is the new current, terminal voltage, and power dissipated by a 0.500 M load resistance?
How many different resistance valuescan be created by combining three unequal resistors? (Don’t count possibilities in which not allthe resistors are used, i.e., ones in which there iszero current in one or more of them.)
A person standing barefoot on the ground 20 m from the point of a lightning strike experiences an instantaneous potential difference of 300 V between his feet. If we assume a skin resistance of 1.0 kΩ, how much current goes up one leg and back down the other?
The p.d across a 4 ohm resistor is 20v. Assuming all the energy dissipated by this resistor is in the form of heat, how many joules of heat are radiated in 10 seconds ?
A fish-tank heater is rated at 95 W when connected to120 V. The heating element is a coil of Nichrome wire.When uncoiled, the wire has a total length of 3.5 m. Whatis the diameter of the wire?
A 500-W heating coil designed to operate from 110 V ismade of Nichrome wire 0.500 mm in diameter.(a) Assuming the resistivity of the Nichrome remains constantat its 20.0°C value, find the length of wire used.(b) What If? Now consider the variation of resistivity withtemperature. What power is delivered to the coil of part(a) when it is warmed to 1 200°C?
A rectangular block of copper has sides of length 10. cm, 20. cm,and 40. cm. If the block is connected to a 6.0 - V source acrosstwo of its opposite faces, what are (a) the maximum currentand (b) the minimum current the block can carry?
(I) Four 1.50-V cells are connected in series to a 12.0 Ωlightbulb. If the resulting current is 0.45 A, what is the internalresistance of each cell, assuming they are identical andneglecting the resistance of the wires?