How much energy is consumed by a 1.0 kW hair dryer used for 11 min?  E= How much energy is consumed by a 10 W night light left on for 13 hr? E=

Q: A 0.836 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC…

A: Recall P=iεSo E= energy supplied by battery=Pt=iεtNow energy converted to KE=EηWhere η is efficiency

Q: A standard flashlight battery can deliver about 1.7 W⚫h of energy before it runs down. (a) If a…

A: Step 1:According to the question it is given: Energy of the batteryE = 1.7 Wh Power of the lampP =…

Q: B1

A: Given: Power,P=1.54WPotential Difference,V=3.80VTime,t=5.63hrs=5.63×3600s The quantity of energy…

Q: A 0.718 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC…

A: Given that:- Mass of toy car=m=0.718kg

Q: The electric circuit to which a television set is connected is protected by a 15 A circuit breaker.…

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Q: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…

A: Current in circuit I = 0.12 A Potential drop Vo = 3.0 V

Q: n a household, a 197-W PC is run for 4 hours/day, while a 74-W bulb runs for 8 hours/day. If the…

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Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…

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

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Q: (a) A well-insulated electric water heater warms 127 kg of water from 20.0°C to 45.0°C in 23.0 min.…

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Q: In a certain city, electricity costs $0.17 per kW h. What is the annual cost for electricity to…

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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: A 100 watt bulb is rated for use in a 120 volt line. During a brownout the actual voltage drops to…

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Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…

A: Given that,The power of heater : P1 = 660 (W)The voltage of heater : V1 = 120 (V)The voltage drop :…

Q: A circuit in a student’s room has a 15 A circuit breaker. One evening, she plugs in a computer (240…

A: In the household wiring, the electrical instruments are connected in parallel. Thus, in the room,…

Q: The big mal near Sally and Amy's city has extended their operating hoursto accommodate the huge…

A: Let the time in which battery discharges completely be t. the power consumed by the bulb of power P…

Q: What is the rate of energy dissipation for a 120 V 40 W light bulb?

A: Recall P=IV Also V=IR Pdissipation=I2R

Q: A physics student has a single-occupancy dorm room. The student has a small refrigerator that runs…

A: Given that:iref=2.5 AP1=100 WP2=60 WP3=3 WV=110 Vfor transmission line:d=9.266 mmL=17×2=34 kmV'=110…

Q: One heater uses 340 W of power when connected by itself to a battery. Another heater uses 210 W of…

A: Given:- The first heater which is connected to the battery of V voltage uses a power  P1 = 340W The…

Q: 0.364 kg toy car is powered by two C cells (3.00 V total) connected directly to a small DC motor.…

A: GivenMass of toy car(m)=0.364 kgVoltage(V)=3 VEffective energy conversion…

Q: Hot Water Heater Due this Friday, Nov 18 at 11:59 pm (EST) A family comes home from a long vacation…

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Q: Patients with recurring ventricular arrhythmia, irregular beats of the heart's ventricles, are often…

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Q: 0.718 kg toy car is powered by one 9V battery (9.00 V) connected directly to a small DC motor. The…

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Q: One heater uses 310 W of power when connected by itself to a battery. Another heater uses 200 W of…

A: Given:- The first heater which is connected to the battery of V voltage uses a power P1= 310 W The…

Q: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…

A: Given that,Current : i = 0.12 (A)Potential drop : V = 3 (V)Here we need to find the power :Now,As we…

Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…

A: We have-Power of heater, P1= 660 WattVoltage of heater, V1= 120 VoltDrop-in voltage, V2= 80 VoltWe…

Q: A standard flashlight battery can deliver about 2.3 W-h of energy before it runs down. (a) If a…

A:

Q: A heater coil is rated 100 W, 200 V. It is cut into two identical parts. Both parts are connected…

A: Given that , rating of a heater coil is 100 W,200V .  The coil is cut into two identical parts with…

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1800…

A: (i) Rating of n=2 air conditioners P=1800 W=1.8 kW for t=10 h. (ii) Rating of n=2 heaters P=500…

Q: Patients with recurring ventricular arrhythmia, irregular beats of the heart's ventricles, are often…

A:

Q: An electronic flashgun has a capacitor with capacitance C that is charged to a voltage V. Answer the…

A: Capacitance, C = 1441 μF  Voltage,V = 317 V Time, t= 0.0032 s

Q: How much time does it take for 1.0 C to flow through each of the following circuit elements? A.A 60…

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Q: 0.058 A of electric current is passing through a resistor, and the voltage across the resistor is…

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Q: A cook plugs a 400 W crockpot and a 1000 w kettle into a 240 V power supply, all operating on…

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Q: A 0.364 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC…

A: kinetic energy of car =12mv2=12×0.364×2.352=1.005095 Joules If E is the energy suplied by the…

Q: A PHILIPS brand of electric mixer is operating at 175 Watts. How much are you going to pay in 1…

A: Given, Power of electric mixer (P) = 175 W  Electric mixer used  30 min per day for 30 days  Rate/…

Q: A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to…

A: The maximum power that can be dissipated by the electric heater, P=660 W The heater is designed to…

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

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Q: A 1750 W radiant heater is constructed to operate at 120 V. What is the current in the heater when…

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Q: A 13.0 W LED light bulb is turned on. It has an operating voltage of 120 V. (a) How much current (in…

A: Given:                   Power P = 13 W                  Voltage V = 120V a) Current  flowing…

Q: One heater uses 370 W of power when connected by itself to a battery. Another heater uses 260 W of…

A: Given:- The first heater which is connected to the battery of V voltage uses a power  P1 = 370 W The…

Q: Suppose the cost of an incandescent bulb is 23 cents and that electricity costs 12 cents/kWh.…

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Q: An 11.0-W energy-efficient fluorescent lightbulb is designed to produce the same illumination as a…

A: We have following values-Power of Incadescent light bulb, P= 40 WattConsumption time is 100 hIn this…

Q: How much energy does a toaster use if it is rated at 1200 W and runs current for 2 minutes as it…

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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.