A heater has a resistance of 400Q when the potential difference across it is 12V. If this same heater is connected in series to a circuit with a 98V supply and a resistor S, how much resistance should S have so that the potential difference on the heater is 12 V?

A heater has a resistance of 400Q when the potential difference across it is 12V. If this same heater is connected in series to a circuit with a 98V supply and a resistor S, how much resistance should S have so that the potential difference on the heater is 12 V?

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: An electric space heater is connected across a 120 V potential difference. If 1.5 kW of power are…

Q: Resistors of 10, 15 and 5 ohms are all connected in SERIES to a 90 V source of potential difference.…

A: Given that-Resistance, R1= 10ΩResistance, R2= 15ΩResistance, R3= 5ΩWhen resistors are connected in…

Q: An 80N box is pulled 20m up the incline making 20 degrees with the horizontal, by an applied force…

Q: In the circuit shown, the battery voltage, V 15V and the load resistance, R = 452. %3D V A R V The…

A: Given data: Battery voltage (V) = 15 V Load resistance (R) = 45 Ω

Q: How much current flows thru a 6 Ω resistor in 4 minutes if it is connected to a 9V battery ?

A: Given : R = 6 Ω t = 4 minutes = 4 x 60 = 240 seconds V = 9 V

Q: circuit is connected to a 12V battery and every resistor has a resistance of 200 W. what's the total…

A: Given, voltage of battery, V=12V .............(1) Resistance of each resistor,R=200…

Q: Which of the following statements describes what occurs in the fission process? a. A neutron is…

A: In nuclear fission process, a heavy nucleus is split into daughter nuclei.

Q: Three equal resistors are arrange in a series configuration. A potential difference of 1.5 Volts is…

A: Let the resistance of each resistor is R . Since they are connected in series the equivalent…

Q: A 1520-W hair dryer plugs into a 120-V outlet. What is the current through the hair dryer when it…

A: Power of hair dryer (P) = 1520 W Voltage (V) = 120 volts

Q: If the potential difference across the two ends of a conductor is 5 V and the current through it is…

Q: The power supply voltage is 15 V. Resistor 1 has a resistance of 1.5 ohms. Resistor 2 has a…

A: Given, Resistor 1 has resistance R1 = 1.5 ohms Resistor 2 has resistance R2 = 3.0 ohms…

Q: How much current flows thru a 60 resistor in 4 minutes if it is connected to a 9V battery ?

A: Given that,Resistor : R = 6 (Ohm)Time : t = 4 (min) = 240 (sec)Voltage : V = 9 (V)Here we need to…

Q: How long does it take the charge to reach 63% of its final value if a 10 microfarad capacitor is…

Q: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.492,…

A: Given that - EMF of the battery Internal Resistance of the battery To Find - We have to determine…

Q: total

A: Given: Emf of the cell = 4V The terminal voltage of the cell = 3.6 V Total current = 2 A Internal…

Q: A circuit contains a 10.0 ohm resistor, a 12.0 ohm resistor, and a 6.0 ohm resistor. If they're…

Q: In the US, the conventional voltage seen in a recepticle (wall outlet) is 120 V. How many amperes is…

Q: A water-tank heater, with a resistance of 7 kN, is attached to a battery providing a voltage of 7 V.…

Q: An unknown source has in it resistances in series, 4 Ω, 8Ω, and 20 Ω. If the voltage drop in the 8 Ω…

Q: In the circuit shown, the battery voltage, V= 12V and the load resistance, R = 102. V A V The…

Q: 2V battery pushes 15 mA through a resistor how much p ower does the resistor consuime?

A: voltage =V= 2 V Current = i= 1.5 mA = 1.5 X 10-3 Amp power = p = ?

Q: what is the current if a battery has internal resistance of 20.6ohms given in a closed circuit that…

A: Given Voltage (E) = 9.3 V Internal resistance (r) = 20.6 ohm Resistance (R)…

Q: The resistance of electric heater is 14 Ohm when connectedto 120 V What is the power consumption of…

A: Given, the resistance of electric heater is R=14 Ohm when connected to a voltage source, V=120 V We…

Q: Three resistors of 50 ohms, 100 ohms, and an unknown resistance R are connected in parallel and the…

A: Given: The resistances are 50 Ω and 100 Ω and R. The supply voltage is 25 V. The total current is 1…

Q: Copper wiring in a house usually has a diameter of approximately 1.5mm. What length of copper wire…

A: Given that - Diatmeter of copper wire(D) =1.5mm=1.5*10^-3m Resistance(R)=1.0 ohm Resistivity of…

Q: What is the energy used to run a 9v circuit with a 90 ohm resistor for 10 seconds?

Q: the current of a 30 ohm resistor is measured to be 0.35 amps. what is the emf E of the battery?

A: Given data Resistance (R) = 30 ohms Current (I). = 0.35 A Emf of the battery = ?

Q: A light bulb used in a computer projector has a resistance of 800 Omhs. What is the current through…

Q: A digital clock has a 1.2x10 4 2 resistor and is connected to a 115 V source. How much power does…

A: Given Resistance (R) = 1.2 × 104 Ω Source voltage ( V0 ) = 115 V Power is given by :- Power (P) =…

Q: A potential difference of 120 V is applied across a resistor of unknown resistance. If the heat…

Q: A current of 9 A flows through an appliance connected to a standard 120-volt outlet. Calculate the…

Q: An electric heater is rated 1000 W-220 V. Calculate the resistance of the heating element.

A: Introduction : In this question we are provided with value of power and potential difference .…

Q: What is the potential difference across a 15 ohms resistor when a current of 6.5A passes through it?

Q: A Palduma water heater heats 1 liter (1000 cm?) of water from 19°C to 99°C in 10 minutes when 110 V…

Q: What will be the value of current through a resistor of 40 ohm when the potential difference…

A: Given, Resistance, R = 40 ohm Potential difference, V = 20 V

Q: An electric blanket is connected to a 120-V outlet and consumes 350 W of power. What is the…

A: Given data: The voltage of the outlet, V=120V Power consumed by the blanket, P=350W

Q: A potential difference of 192 volts produces a current of 2 amps in the heating element of a…

A: Given: The potentila difference is 192 V. The current in the toaster is 2 A.

Q: What voltage drop will be there across a 1 kw electric heater element whose resistance when hot is…

A: The electric power in terms of voltage and resistance is P =V2R

Q: The potential difference between the terminals of an electric heater is 60 V when it draws a current…

Q: The household circuit operating at 120 V has a 30 A circuit breaker. 1500 W iron, 2000 W fryer and…

A: Maximum current that could pass = 30 Ampere Power of fryer= 2000 Watt Power of iron = 1500 watt to…

Q: A 60 Q and a 30 Q resistor are connected in parallel. A 10 resistor is connected in series to them.…

A: Given: The resistance R1=10 Ω. The resistance R2=60 Ω. The resistance R3=30 Ω.

Question

A heater has a resistance of 400Q when the potential difference across it is 12V. If this same heater is connected in series
to a circuit with a 98V supply and a resistor S, how much resistance should S have so that the potential difference on the
heater is 12 V?
a. 2867 Q
O b. 2467 Q
O c. 3267 e
O d. 3667 e

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

An electric space heater has a resistance of 8.10 ohms. How much energy does it use when connected to an electrical outlet with a voltage of 110V for 30 minutes?
A cell has an emf of 6.02 V, internal resistance of 1 ohms and a current of 0.8 A passing through it.this cell is connected to a resistor. Find out the resistance of the resistor ?
Three 925 Q resistors are wired in series. What is the total resistance of the combination? (Express your answer in Q).
What is the resistance of a light bulb that draws 0.722 A when connected to a 56.9 V potential difference? Express your answer to three significant figures. The Resistance would be Ohms.
Calculate the electric current running through a resistor with resistance R = 10022 when it is connected through a voltage V₁2 = 8 V.
A current of 0.625A runs through a bulb that is connected to a 120V power supply. What is the resistance of the bulb?
What is the effective resistance of a car's starter motor when 150 A flows through it as the car battery applies 11.3 V to the motor?
Two resistors connected in series across a 30V source. If R1 = 5 ohms and R2 = 8 ohms, what is the total current of the circuit?
The resistance of electric heater is 75 Ohm when connectedto 120 V What is the power consumption of the heater?
The resistance of electric heater is 32 Ohm when connectedto 120 V What is the power consumption of the heater?
Two resistors of 36 N and 55 Q are connected in series. If the voltage drop across the 36-2 resistor is 50 V, what is the voltage drop across the 55-2 resistor?
The heating element of an electric dryer is rated at 4.1 kW when connected to a 240 V line. What is the resistance of the dryer's heating element at its operating temperature?