A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 100 V. (a) What is the current through the lightbulb? If the voltage is reduced to 45 V, what is the dissipated power?

A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 100 V. (a) What is the current through the lightbulb? If the voltage is reduced to 45 V, what is the dissipated power?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 13P: While taking photographs in Death Valley on a day when the temperature is 58.0C, Bill Hiker finds...

See similar textbooks

Related questions

Q: If a person has $5, how long could he or she play a 200 W stereo if electricity costs $0.15 per kWh?

Q: What is the power consumed by the resistor of 20 ohm connected across 100 V source ?

A: Given, Resistance, R = 20 ohm Source Voltage, V = 100 V

Q: How much electrical energy (in kilowatt hours) would a 45.0 W light bulb use in 60.0 days if left on…

A: Given that The power of the bulb is (P) = 45W Time = 60days…

Q: In the United States the standard voltage in homes is 120 V. Therefore, a “90 W” American bulb would…

A: Power of bulb = P = 90 W Voltage = V = 120 V Resistance of bulb can be found by following formula:…

Q: Integrated Concepts. A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being…

Q: A skow cooker designed for and used in Europe, where outlets provide 230 Volts, allows 1.4 Amps of…

A: Given data: The outlet voltage in Europe V=230 V. Allowed current is I=1.4 A. The outlet voltage in…

Q: 10.0 N 20.0 N ww- 60.0 N -ww- 60.0 N 2.00 A 30.0 0 ww 5.0 Ω -5.0 V 10.0 V 15.0 N E 5.00 w - ww 20.0…

Q: Use (sheet no. 13) in the attached excel file and the following equation RL PRL = e? (R2 + R)² data…

A: This question can be solved by using the basic concept of AC circuit .

Q: The voltage across a component is 100 V r.m.s. and the current is 7 Ar.m.s. If the current lags the…

A: Formula of apparent power is as follows: Papparent=VrmsIrms…

Q: The figure shows an LED, protected by a resistor R, which is powered by a 9 Volt battery. If the…

Q: Refer to the figure and the discussion of lights dimming when a heavy appliance comes on. (a) Given…

Q: TW Large IR drop in wires Bulb dims R- wire rosistanco Low R, draws lerge , R, Motor (a) Given the…

Q: Refer to Figure and the discussion of lights dimming when a heavy appliance comes on. Given the…

A: The voltage of the source, V=120 V The resistance of the wire, R1=0.400 Ω The power of the bulb,…

Q: Why is the answer not approx 0.58 kWh as P = (0.2)(120) = 24 W = 0.024 kW and if E = P*t then E =…

A: Yes Your answer 0.58 kwh is correct answer In previous answer time one day 24 hour It alredy time…

Q: If each resistor is rated at 0.50 W (maximum without overheating), what is the maximum voltage that…

Q: In a household, a 120-W personal computer (PC) is run for 4 h/day, while a 60-W bulb runs for 8…

Q: You are told that a certain voltage will be between 3 V and 5 V, and are given a non- autoranging…

Q: The heating element of an electric kettle has a resistance of 30.0 N. The kettle is connected to an…

A: Given, VRMS=IRMSR230=IRMS×30IRMS=7.67 A

Q: In the circuit shown in the next Figure, PMCC has a full scale of 1mA meter movement with an…

Q: Thermal energy is produced in a resistor at a rate of 150 W when the current is 3.50 A. What is the…

Q: Consider the multi loop circuit shown in Figure 9. Directions of the currents and the numerical…

A: Apply KVL on the left loop. Similarly, apply KVL on the right loop.

Q: A 100-W driveway light bulb is on 10 hours per day. Assuming the power company charges 10 cents for…

Q: solve the following numerical problem A 120-Ohm resistor is in series with unknown resistor. The…

Q: The voltage drop across a certain device and the current through it in the direction of the voltage…

Q: What is the maximum number of 60 W light bulbs that you can connect in parallel to a 120-V home…

A: solution: given that P = 60W V = 120 V I = 30 A

Q: If the current through a resistor is increased by a factor of 2, how does this affect the power…

A: The power in terms of current and resistor is P=I2R

Q: The current and voltage across a circuit element are given, respectively, by the equations I(t) =…

Q: What is the maximum voltage, in V, that a 30 Ohm light bulb can handle if it is rated for 60 W?

A: Resistance = 30 ohm Power rating of light bulb = 60 Watt Formula used , Power = Voltage2/R

Q: How much does it cost (in ₱) to operate a 670-W split-type inverter air conditioner for 8 in 30…

Q: Compute the electrical energy consumed in Joules if a toaster of 50 W is used 2000 seconds ?

A: Introduction : In this question we are provided with value of power and time. with these data we…

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: Consider the circuit shown in Figure. The voltage of 35.0 V is applied between points a and b. 12.0…

Q: In the shown figure, find the power (in W) dissipated in the 2R-resistor if ɛ = 13 V and R= 3.0 N.…

A: A charged body has an excess of either the positive or the negative charges. The flow of charges…

Q: A device (such as a light bulb) experiences a voltage drop of 4.0 V across it while a DC current of…

A: The power dissipated by the device will be the product of the voltage drop across it and the current…

Q: If the current through a resistor is increased by a factor of 4, how does this affect the power…

A: Power through a circuit of resistance R and current I is given by, P=I2R Given : Current is…

Q: When a 4.6-μF capacitor is connected to a generator whose supply voltage is 55-V, the current in the…

Q: A 100-W lightbulb connected to a 120-V source experiences a voltage surge that produces 140 V for a…

Q: In the U.S., where the standard is 120 V, a particular light bulb has a power rating of 100 watts.…

Q: A 0.50-W, 220- Q resistor carries the maximum current possible without damaging the resistor. If the…

Q: If you were to place a 3kΩ resistor across a 9 volt battery, what is the power dissipated from this…

A: Given data: Resistance (R) = 3 kΩ = 3000 Ω Battery (V) = 9 V Required: Power (P)

Q: An emergency generator produces a 30 V output at a maximum current of 3.5 A. To use the output for…

A: voltage is stepped up/down using a transformer then power input to transformer=power output of the…

Q: What power is dissipated by a 40 Ω resistor when a voltage of 6 V is connected across it?

A: Given : R = 40 Ω V = 6 V

Question

A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 100 V.

(a) What is the current through the lightbulb?

If the voltage is reduced to 45 V, what is the dissipated power?

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

Trending now

This is a popular solution!

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

If you were to design an electric heater using Nichrome wire as the heating element, what parameters of the wire could you vary to meet a specific power output such as 1 000 W?
While taking photographs in Death Valley on a day when the temperature is 58.0C, Bill Hiker finds that a certain voltage applied to a copper wire produces a current of 1.000 A. Bill then travels to Antarctica and applies the same voltage to the same wire. What current does he register there if the temperature is 88.0C? Assume that no change occurs in the wires shape and size.
Resistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a current of1 = 2.00 A is accidentally passed through a R=1.00 resistor rated at 1 W, what would be the most probable outcome? Is there anything that can be done to prevent such an accident?
What is the maximum voltage, in V, that a 30 Ohm light bulb can handle if it is rated for 60 W?
Suppose a heart defibrillator consumes 425 j of energy in 10.5 ms. What is the average power output of the defibrillator, in W?
How long must a 100-W light bulb run in order to consume a million joules of electrical energy?
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 100 V. (a) What is the current through the lightbulb?
What is the smallest capacitor needed in a computer power supply in order to supply at least 0.1 A of current for 0.13 s after the power goes off? Assume that the resistance of all the components of the computer mother board is 5 Ω and it uses a 5 V supply.
How much does it cost (in ₱) to operate a 670-W split-type inverter air conditioner for 8 in 30 days, if the energy costs ₱9.0/kWh?
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?
A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the flash is 0.21 s (which you can assume is the time constant of the capacitor), during which it produces an average 35 mW from an average voltage of 2.85 V. What is the resistance, in ohms, of the light?
Two 75 W (120 V) lightbulbs are wired in series, then the combination is connected to a 120 V supply. How much power is dissipated by each bulb?