The manufacturer of an electric table saw claims that it has a 3.0 horsepower motor. 1 horsepower is approximately 750 W. It is designed to be used on a normal 120 V outlet with a 15 A circuit breaker. Is this claim reasonable? Explain.

Q: A 100 W lightbulb is brighter than a 60 W lightbulb when both operate at the same voltage of 120 V.…

A:

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: Common household appliances are rated at 110 V, but power companies deliver voltage in the kilovolt…

A:

Q: Why is the following situation impossible? A politician is decrying wasteful uses of energy and…

A:

Q: If two household lightbulbs rated 60 W and 100 W are connected in series to household power, which…

A: Brightness of a bulb

Q: Are automobile headlights wired in parallel or in series? Explain.

A:

Q: Why is the series arrangement not used for domestic circuits?

A:

Q: The generator of a car idling at 1.582E+3 rpm produces 15.3 V. What will the output be at a rotation…

A: Given value--- angular speed 1 = 1.582E+3 rpm. Voltage 1 = 15.3 V. angular speed 2 = 2.886E+3 rpm.…

Q: Household electrical outlets operate at 120 Volts. A microwave oven is rated at "120V, 1.0 kW"…

A: The given data are listed below with appropriate variables. Here, V denotes the potential across…

Q: Semitractor trucks use four large 12-V batteries. The starter system requires 24 V, while normal…

A: Given: Semitractor trucks use four large 12-V batteries. The starter system requires 24 V, while the…

Q: The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge…

A: power of each headlight =43.0 W car battery V=12.0 volts rated Q=92.0 A.h

Q: Why does alternating current work so well for wireless charging and induction stoves?

A: solution is given as

Q: Small household electrical devices, such as vacuum cleaners, televisions, and floor lamps, each draw…

A: In series combination, the current is the same while the voltage is different across the circuit…

Q: Can the terminal voltage of a battery ever exceed its emf?Explain.

A: emf of a cell is the potential difference across its terminal in open circuit. Terminal voltage of a…

Q: The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to…

A:

Q: An 1,840 W toaster, a 1,340 W electric frying pan, and a 95 W lamp are plugged into the same outlet…

A: Given Data Power of the toaster is Ptoaster=1840 W Power of the frying pan is Ppan=1340 W Power of…

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: Integrated ConceptsCold vaporizers pass a current through water, evaporating it with only a small…

A: Given Data: The current in a device is, I=3.5 A The supplied voltage is, V=120 V The efficiency of a…

Q: Each of three identical electric heaters is rated at 1000 W when operated across 100-V lines. When…

A: Given: Rating of electric heater (P)= 1000 W. Standard Supply voltage (V) = 100 V. Supply in circuit…

Q: A 60 W (120 V) night light is turned on for an average of 12 h a day year round. What is the annual…

A: The total energy consumed in one tear will be, E=60 W12 hr365   =262,800 Wh   =262.8 kWh

Q: An electric jug kettle has a rating of 2kW at 240 V. If the resistance per unit length is 3 ohm…

A: Given,Rating of electric jug kettle is 2KW at 240Vso, current rating I=2KW240V=2000W240VI=8.333Aso,…

Q: A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to O a. r.m.s. voltage b. none of…

A: A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to

Q: You have a parallel circuit in a house that operates on 120 V with several outlets for plugging in…

A:

Q: If two household light bulbs rated 60 W and 100 W are connected in series to household power, which…

A: Given, two light bulb, 60 W and 100 W

Q: Cold vaporizers pass a current through water, evaporating it with only a small increase in…

A: Given data: The rated current of the device is I=3.50 A. The voltage utilized by the device is…

Q: Household electric power in most of western Europe is supplied at 240 V, rather than the 120 V that…

A: The advantage of the 120 V supply system: The lower voltage of 120 V in households is safer than the…

Q: The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to…

A:

Q: A light bulb marked "60 W [at] 120 V" is screwed into a socket at one end of a long extension cord…

A: Given data The Light bulb marked at 60 W at 120 V. The resistance of the conductor is R = 0.801 Ω.…

Q: A 14 W energy efficient CFL lamp, is designed to produce the same illumination, as a conventional 60…

A:

Q: At $.110 per kWh, what does it cost to leave a 40-W porch light on day and night for a year? Enter…

A: Given Power of porch light is P=40 W Time is t= 1 year= 8,765.82  hours The energy delivered to the…

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: A fish-tank heater is rated at 85 W when connected to 120 V. The heating element is a coil of…

A: Given value--- Power = 85 W. Voltage = 120 V. length = 3 m. We have to find--- diameter of the…

Q: The copper windings of a motor have a resistance of 50 ohm at 20°C when the motor is idle. After the…

A:

Q: 37. (II) How many kWh of energy does a 550-W toaster use in the morning if it is in operation for a…

A: Given Power, P=550W Time, t=5 min=560h=0.083h cost, C=9.0 cents/kWh Electrical energy can be find…

Q: 1. The equivalent resistance of the circuit is 2. The source current is A 3. The voltage drop across…

A:

Q: A 2.0 kW heater element from a dryer has a length of 80 cm. If a 10 cm section is removed, what…

A:

Q: A 4 W night light is plugged into a 120V circuit and operates continuously for 1 year. Find the…

A: Power, P = 4 W  voltage, V = 120 V   time, t = 1 year  rate = 150 c/kWh

Q: If you work out enough to visibly increase the diameter of your biceps, will this increase or…

A: Just like the resistors used in electronics, we can say that the resistance of your biceps will…

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

A: Given data The voltage in Europe is given as Ve = 230 V. The current allows in Europe is given as I…

Q: Suppose that you have a leaf blower that draws 1100 Watts in operation. It is fed by an extension…

A: Power of leaf blower (P) = 1100 W Voltage of the outlet (V) = 120 volts Resistance of each wire =…

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: A current of 0.3 A is passed through a lamp for 2 minutes using a 6-V power supply. The energy…

A: Given : I = 0.3 A t = 2 minutes = 2 x 60 = 120 seconds V = 6 V

Q: Which of the following is false? O Batteries produce direct current alone. O The current reaching…

A: 1. True or false. Batteries produce direct current alone. It is true, because, the current produced…