Answered: A block heater of a car is designed to…

A block heater of a car is designed to keep the oil in the engine block warm during cold weather. If a heater has a voltage of 120 V and draws 3.30 A, how much power does it consume?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 3CQ: The ignition circuit of an automobile is powered by a 12-V battery. How are we able generate large...

See similar textbooks

Related questions

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: A colour- TV set has a power rating of 320 W. How much current does this set draw from a potential…

A: Given data: Power of the TV P=320W Potential difference V=110V

Q: What is the effective resistance of a car's starter motor when 145 A flows through it as the car…

A: The relation between voltage, current and resistance through a conducting medium is, V=IR or, R=VI

Q: Your cell phone typically consumes about 400 mW of power when you text a friend. If the phone is…

Q: A heating element is marked 210 V, 630. What is the value of the current drawn by the element when…

A: The heating element is marked with the the maximum voltage and power it can endure. In this case it…

Q: The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use…

Q: A 1.60×103 watt iron is connected to a 1.20×102 volt line and is operated for 2.75 hours. What is…

Q: . A battery is rated at 12 V and 160 A-h. How much energy does this battery store? Answer: 6.9 MJ

A: Given that---- V = 12 volt I = 160 amp t = 1 hour Question ❓ Energy of battery ?

Q: A resistor draws 60 W power then connected across a potential difference of 120V. What power does…

Q: One heater uses 310 W of power when connected by itself to a battery. Another heater uses 210 W of…

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: One wire in a high-voltage transmission line carries 1 000 A starting at 700 kV for a distance of…

Q: How much does it cost to operate a 1.2 kw heater for exactly 30.0 min if electrical energy costs…

A: Given: The power of the heater is 1.2 kw. The time duration of the uses is 30.0 min.

Q: A 43 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Given Data: The resistance of a battery is, R=43 Ω The voltage of a battery is, V=12 V The…

Q: On a sunny day, a rooftop solar panel delivers 80 W of power to the house at an emf of 17 V. How…

Q: A 120-V hair dryer has two settings: 850 W and 1550 W. B) Determine the resistance at 850 W setting.

Q: Light bulb of an automobile dissipates 60 Watts when connected to a 12 Volt battery. How many hours…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = 30 W V = 120 v t= 4.3 min = 4.3 ×60 = 258 sec To calculate Q

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = V*I 30 = 120* I I = 30/ 120 I = 0.25 A

Q: Two 75 W (120V) light bulbs are wired in series, then the combination is connected to a 120 V power…

Q: The resistance of an electric heater is 15 Ω when connected to 120 V. How much energy does it use…

Q: What is the effective resistance (in Ω) of a car's starter motor when 142 A flows through it as the…

A: Given data: Current (I) = 142 A Voltage (V) = 11.0 V Required: Resistance (R)

Q: What is the voltage across the terminals of a 23 N resistor that has 0.065 A of current flowing…

A: According to the Ohm's law, V = I R where, I is the current and R is the resistance and V is the…

Q: A cauterizer, used to stop bleeding in surgery, puts out 2.00 mA at 15.0 kV. What is the resistance…

A: Using ohm's law, V=IRR=VI

Q: The largest number of 100 W electric light bulbs which can be operated from a 240 V supply fitted…

A: Given100 W electric bulbsVoltage=240 VMaximum possible Current (I)= 13 A

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Given, Power P = 30 W Voltage V = 120 V time t = 4.1 min = 4.1 * 60 = 246 sec

Q: A car owner forgets to turn off the headlights of his car while itis parked in his garage. If the…

A: Since there is two 2 headlights the total power is 72W

Q: Appliances that require a lot of power, such as a dryer or a stove, typically run on 240 V, and…

A: Given: Initial Power, P1 = 4461 W Initial Voltage, V1 = 240 V Final Voltage, V2 = 120 V To…

Q: A 27 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Energy expended per second is the power itself. P=V2R

Q: An electric heater is operated by applying a potential difference of 50.0 V across a wire with a…

Q: A microwave oven draws 8 A when supplied with 120 V. The microwave is subsequently used for 6…

A: To find the electrical energy used by microwave

Q: What is the heat generated (in J) in a heating element of resistance 900 Ω when a current of 0.3 A…

A: The resistance, R=900 Ω The current, I=0.3 A The time duration, t=10 s

Q: Standard automobile batteries have six lead-acid cells in series, creating a total emf of 12.0 V.…

A: The expression for the required individual emf of lead-acid cell,

Q: A portable CD player operates with a current of 18 mA at a potential difference of 4.3 V. What is…

A: Given: The current is 18 mA. The potential difference is 4.3 V.

Q: The potential difference across a resting neuron in the human body is about 75.0 mV and carries a…

A: CONCEPT: We know, Power = potential difference x current So, Power P=V×I Given, Potential…

Q: How much power is dissipated by a 60 W (120 V) lightbulb when operated, using a dimmer switch, at…

A: P1=60 WV1=120 VV2=100 V

Q: A 2 nF capacitor with an initial charge of 16 micro.C is discharged through a 2000 ohm, the maximum…

Q: Given the circuit below, what is the total power supplied by the source? 110 Q 220 2 + 24 V 180 Q…

A: In the given circuit, 220 ohms and 250 ohms resistors are connected in series. In a series…

Q: A video game device requires six 1.50 V AA batteries in series, which can move a charge of 250 C.…

A: Current = potential/ resistance Also, current = charge/time

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

Q: A man owns a canister vacuum cleaner rated at 353 W, 120V. (i). What is the electrical resistance…

Q: An electric heater is constructed by applying a potential difference of 95.1V across a wire with a…

A: Given Data : The voltage applied across the heater is given as V = 95.1V. The resistance of the wire…

Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Given data: Resistance of glass insulator, R=1.00×109 Ω Voltage, V=200 kV =200,000 V

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

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

A block heater of a car is designed to keep
the oil in the engine block warm during
cold weather. If a heater has a voltage of
120 V and draws 3.30 A, how much power
does it consume?

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

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

A battery with an emf of 24.00 V delivers a constant current of 2.00 mA to an appliance. Haw much work does the battery do in three minutes?
A 0.50-W, 220- resistor carries the maximumcurrent possible without damaging the resistor. If the current were reduced to half the value, what would be the power consumed?
The ignition circuit of an automobile is powered by a 12-V battery. How are we able generate large voltages with this power source?
(a) What advantage does 120-V operation offer over 240 V? (b) What disadvantages does it have?
A short circuit in a 120-V appliance cord has a0.500- resistance. Calculate the temperature rise of the2.00 g of surrounding materials, assuming their specific heat capacity is 0.200cal/gC and that it takes 0.0500 sfor a circuit breaker to interrupt the current. Is this likely to be damaging?
A 165F capacitor is used in conjunction with a dc motor. How much energy is stored in it when 119 V is applied?
A 120-V circuit in a house is equipped with a 20-A fuse that will b1ow if the current exceeds 20 A. What is the smallest resistance that can be plugged into the circuit without causing the fuse to blow?
The average television is said to be on 6 hours per day. Estimate the yearly cost of electricity to operate 100 million TVs, assuming their power consumption averages 150 W and the cost of electricity averages 12.0 cents/kW h .
Refer to Figure 10.17 and the discussion of lights dimming when a heavy appliance comes on. (a) Given the voltage source is 120 V, the wire resistance is 0.800 and the bulb is nominally 75.0 W, what power will the bulb dissipate if a total of 15.0 A passes through the wires when the motor comes on? Assume negligible change in bulb resistance, (b) What power is consumed by the motor?
Refer to Figure 21.7 and the discussion of lights dimming when a heavy appliance comes on. (a) Given the voltage source is 120 V, the wire resistance is 0.400, and the bulb is nominally 75.0 W, what power will the bulb dissipate if a total of 15.0 A passes through the wires when the motor comes on? Assume negligible change in bulb resistance. (b) What power is consumed by the motor?
A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating clement with a resistance of 2.00 . (a) Calculate the power consumed by the heater. (b) How many minutes would it take to heat 1.00 kg of coffee from 20.0C to 50.0C with this heater? Coffee has a specific heat of 4 184J/(kg C). Neglect any energy losses to the environment.
Integrated Concepts (a) Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 750-kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 2.00 102-m- high hill in 2.00 min at a constant 25.0-m/s speed while exerting 5.00 102 N of force to overcome air resistance and friction? (c) To travel at a constant 25.0-m/s speed, exerting a 5.00 102 N force to overcome air resistance and friction? See Figure 20.44.