A copper transmission cable 100 km long and 10.0 cm in diametercarries a current of 125 A. How much electrical energy is dissipated as thermal energy every hour?

Q: Two uniform wires of same mater one having double the length of t series, carrying a current of 10…

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Q: A certain brand of hotdog cooker works by applying a potential difference of 137 V across opposite…

A: Given : potential difference = 137 V       Current I= 10.9A Energy required to cook 1 hotdog = 61.0…

Q: Copper has one conduction electron per atom. Its density is 8.89 g/cm' and its atomic mass is 63.54…

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Q: The wiring in a house must be thick enough so it does not become so hot as to start a fire.  What…

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Q: On a sunny day, a rooftop solar panel delivers 60 W of power to the house at an emf of 17 V. How…

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Q: If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following…

A: Here , A) for 40W , Rate = 24 ×40×0.12×10-3 =0.1152 $ Now , B) P =VI = 20(220) =4400 W Now  Rate =…

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

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Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…

A: Given that, Voltage, V= 4 VoltCurrent, I=4 mA=4×10-3 A

Q: A certain brand of hotdog cooker works by applying a potential difference of 120V across opposite…

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Q: While taking photographs in Death Valley on a day when the temperature is 52.0°C, Bill Hiker finds…

A: Given data: Temperature of Death Valley, T1=52.0OC Current at temperature T1,  I1=1.00 A Other…

Q: A certain brand of hotdog cooker works by applying a potential difference of 129 V across opposite…

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Q: A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done…

A: Current (I) = 12 A Voltage (V) = 25 V time (t) = 3 millisecond

Q: A certain brand of hotdog cooker works by applying a potential difference of 133 V across opposite…

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Q: Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for…

A: Given Data The diameter of the wire is d = 0.205 cm The current carried by the wire is I = 20 A…

Q: A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when…

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Q: An electric utility company supplies a customer's house from the main power lines (110V) with two…

A: Part(a) Voltage at the customer's house. part(b) power that the customer is receiving. part(c)…

Q: A 150 W heating coil (like a light bulb) is designed to operate from 125 V. The coil is made from a…

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Q: Giant electric eels can deliver a shock of 490 V with up to 1.0 A of current for a brief time. A…

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Q: A conductor requires 50 V in order to pass 1.5 A of current. What is the resistance offered by the…

A: As per Ohm’s law, the resistance offered by the conductor can be determined as, Here, V and I…

Q: Electrons in an x-ray tube are accelerated through 134 kV and directed toward a target to produce…

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Q: Thermal energy is produced in a resistor at a rate of 100 W when the current is 3.00 A.What is the…

A: Given : rate of thermal energy production = 100 W            current, I  = 3.0 A Thermal energy…

Q: An aluminum wire having a cross-sectional area equal to 5.90  10-6 m2 carries a current of 4.50 A.…

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Q: In doing a load of clothes, a clothes drier uses 16 A of current at 240 V for 39 min. A personal…

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Q: Thermal energy is produced in a resistor at a rate of 112 W when the current is 3.63 A. What is the…

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Q: A gold wire of 0.500 mm diameter has 8.20 × 1028 conduction electrons per cubic meter. If the drift…

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Q: What is the current I through the conductor at time 5.0 seconds?

A: Given, Aluminium 12 gauge wire diameter of the wire=0.205cm resistivity ρ=2.75×108 ohm mElectric…

Q: A man foolishly tries to fish a burning piece of bread from a toaster with a metal butter knife and…

A: Given Data: The voltage is, V=120 V The threshold of sensation current is, I=1 mA   The expression…

Q: In the evening, the student turns on a 38-W table lamp, plugs in a 167-W computer to study physics,…

A: Power of lamp is Power of computer is Power of coffee maker is Note:The voltage in household…

Q: A stun gun or TASER is designed to put out a few seconds worth of electric pulses that impress a…

A: Using Ohm’s law, the equation for resistance can be given as

Q: a copper wire is 2.50 m long and has a diameter of 2.5 mm. how much current will it draw when…

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Q: A person standing barefoot on the ground 20 m from the point of a lightning strike experiences an…

A: The potential difference, V=300 V   The skin resistance, R=1.0 kΩ=1.0×103 Ω