The 120 V electric heater in a coffee maker has a resistance of 15 Ω. How long will it take for this heater to raise 5 cups (1100 g) of water from 20°C to the ideal brewing temperature of 90°C?

Q: The resistance of a bagel toaster is 20 Ω. To prepare a bagel, the toaster is operated for one…

A: Given information: The resistance of the toaster (R) = 20 ohm The voltage across the toaster (V) =…

Q: What is the output voltage of a 3.00-V lithium cell in a digital wristwatch that draws 0.660 mA, if…

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Q: What is the total resistance of two resistors, R1 = 4.6 Ω and R2 = 7.9 Ω when they are connected in…

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Q: What current is used by the 220 V AC electric heater which heats 2 kg of water (c = 4200 J/(kg K))…

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Q: The process of ____________ occurs when heat is transferred from a hotter object to a cooler object.…

A: The first concept revolves around heat transfer from a hot object to a cold one .The second concept…

Q: How many watts does a flashlight that has 6.00×102 C pass through it in 0.500 h use if its voltage…

A: Power is product of current and potential . P=IV       .....1 where I is current            V is…

Q: Two heaters A and B are in parallel across supply voltage V. Heater A produces 757 kcal in 20 min…

A: Given that For heater A Heat H = 757 kcal Time t = 20 min Resistance RA = 10 ohm For heater B Heat H…

Q: How many watts does a flashlight that has 6.00×102C pass through it in 0.500 h use if its voltage is…

A: Given, Charge 6.00*102 C Time t is 0.500 hours And voltage is 3.00 V

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Q: Two resistors are connected in parallel with an 96 volt battery. The resistors have values of R1 =…

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Q: The heating element of a coffeemaker operates at 120 V and carries a current of 7.70 A. Assuming the…

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Q: A chocolate chip cookie contains about 200 kcal. how long could you power a 100-W light bulb with…

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Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the…

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Q: The voltage across the battery is 15 V, the voltage across the 10 Ω resistor is 3.1 V, and the…

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Q: The heating element of a coffee maker operates at 120 V and carries a current of 3.50 A. How long…

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Q: An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are…

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Q: The internal energy of the water in a container is increased by 440 kJ by means of an electric…

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Q: The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m³, and…

A: Answer : 0.25mm Solution -

Q: What is the useful energy output when a 60 W light bulb is on for 2 hours? Recall, traditional light…

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Q: A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250…

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Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.00 A. Assuming the…

A: Given data:The operating voltage of a coffee maker is V = 120 V.The current carried by the coffee I…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 7.70 A. Assuming the…

A:

Q: resistance of an electric heater is 45 Ω when connected to 120 V. How much energy does it use…

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Q: the heating element on an electric heater dissipates 4.0 x 10^2 watts of power when connected to a…

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Q: A 2.5 kW heater element from a dryer has a length of 59 cm. If a 12 cm section is removed, what…

A: Given values:Power of heater element, P = 2.5 KwInitial length of dryer, Li = 59 cm = 0.59 mFinal…

Q: Suppose a heart defibrillator consumes 425 j of energy in 10.5 ms. What is the average power output…

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

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Q: When it is not connected to a circuit, a battery measures 6.00 V on a voltmeter. You connect it to a…

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Q: A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250…

A: Heat transferred to the water is equal to the energy produced by the heater

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.00 A. Assuming the…

A: Given data:  Voltage (V) = 120 V Current (I) = 5.00 A Mass (m) = 0.300 kg Initial temperature (Ti) =…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 2.50 A. Assuming the…

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Q: 1. The adjacent figure is the l-V curve of a solar cell operating at T=300K. The fill factor of the…

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Q: An ammeter whose internal resistance is 57 Ω reads 4.75 mA when connected in a circuit containing a…

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Q: A 1100 W toaster takes one minute to toast a slice of bread. At 9.0 cents/(kW.-h), how much does the…

A: Time to toast a bread = 1 minute = 1/60 hour Power of toaster = 1100 W cost= 9.0 cents/kWh

Q: A resistor of 9 ohms is carrying  a current of 4 amperes.  What is the voltage that would be…

A: Given data:  Resistance (R) = 9 Ω Current (I) = 4 A Required: Voltage (V)

Q: What is the required resistance of an immersion heater that increases the temperature of 1.50 kg of…

A: Write the given values with the suitable variables. m=1.50 kgT1=10 °CT2=50 °Ct=10 min=600 sV=110 V…

Q: An iPhone battery stores 6.55 Wh of energy. How many iPhones could be charged in one day by a small…

A: Area of solar panel = 0.54 × 0.35  =0.189 Total energy received  in a day = 5.47 × 0.189 KWh/day…

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.