You light a 25-W light bulb with the current from a 12-V lead-acid storage battery. After 1.0 h of operation, how much energy has the light bulb utilized? How many coulombs have passed through the bulb? Assume 100% efficiency. (A watt is the transfer of 1 J of energy in 1 s.)

Q: How long will it take 400 C of charge to pass through a circuit whose current is 1.5 A?

A: Given data :                Charge (Q) = 400 C               Current (I) = 1.5 A

Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

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Q: When connected to a 120 V source, an electric heater is rated at 1200 W and a toaster at 6.0×10 2 W.…

A: Calculate the total power P=Pheater+Ptoaster=1200 W+600 WP=1800 W

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 =30W voltage V =120v time t =4.1 m

Q: A 0.686-meter-long wire has a cross-sectional area of 8.23 x 1 0-6 m2 and a resistance of 0.1 25 ohm…

A: Given: The cross-section area of the wire is 8.23x10-6 m2 The length of the wire is 0.686 m. The…

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: 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: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

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Q: A wire whose length is 2m and whose diameter is 1.5mm carries a current of 1.2A. The wire dissipates…

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Q: An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 3.0 mm…

A: Given Adiameter of wire =  0.129 cm  length of wire 3.0 mm Current = 14.5 A Voltage = 120-V line…

Q: A wire whose length is 2m and whose diameter is 1.5mm carries a current of 1.2A. The wire dissipates…

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Q: Consider the circuit shown below, where E1 = 12 V, E2 = 19 V, E2 = 7 V, R1 = 200 Ω, R2 = 300 Ω, R3 =…

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Q: How much electrical power is dissipated as heat when 7.00 A flow through a 62.0 m long piece of…

A: Given data The current flowing is given as I = 7 A. The length of the copper wire is given as L =…

Q: What current flows through a resistor if 1260 C of charge moves through it in 5.0 minutes?

A: Given data: Charge (q) = 1260 C Time (t) = 5.0 minutes Required: Current (I)

Q: The constant potential difference across a 2 ohm resistor is 20 volts. How many watts of power are…

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Q: A high-voltage electricity transmission line is hung from metal towers with glass insulators having…

A: Given Resistance of wire = 0.85 × 109 Ω  Applied voltage = 180 kV We have to calculate the current

Q: An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, thepower consumed will be…

A: The electric power (P ) is calculated as, Where, P = power V = voltage across the resistance R =…

Q: An electronic device designed to operate at any temperature in the range from −10.0 °C to 55.0 °C…

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Q: For the circuit shown below, if V1 = 28 V and V2 = 6 V, the mesh currents i, and i2, respectively,…

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Q: The copper windings of a motor have a resistance of 46 Ω at 20oC when the motor is idle. After the…

A: Initial resistance of copper windings (r) = 46 ohm initial temperature of the copper windings (t) =…

Q: A 50-watt lightbulb and a 100-watt lightbulb are each operated at 100 volts. Compared to the…

A: Given data:  Power of first lightbulb (P1) = 50 W P2 = 100 W Voltage (V) = 100 V Required:…

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: How much does it cost to run a refrigerator all day, for 6 months (assuming there are 30 days in a…

A: As power is defined as the rate of change of energy per unit time hence total energy used in 6 month…

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

A: It is given that,

Q: How many joules of energy are necessary to run a washing machine for 30 minutes if it is hooked up…

A: We know,  Power, P= V2/R  Energy dissipated, E = P * t = V2 × t /R  Given,  V = 220 V R = 10ohms t =…

Q: How much does it cost (in ₱) to operate a 670-W split-type inverter air conditioner for 8 in 30…

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Q: A 5.0 A current is set up in a circuit for 6.0 min by a rechargeable battery with a 6.0 V emf. By…

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Q: 7. a. In a car electrical system, the capacity of a storage battery is rated in ampere- hours…

A: Given that Charge storage capacity of battery is Q = 100 A-hr = (100 A )X ( 3600 s) = 360000 C…

Q: A metal wire has a resistance of 10.00 W at a temperature of 20°C. If the same wire has a resistance…

A: Given: The resistance of the wire at 20 oC is 10 w. The resistance of the wire at 90 oC is 10.55 w.…

Q: nce of 0.49 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at the same temperature.  a)…

A: We know that we have given that the A copper wire has a resistance of 0.49 Ω at 20.0°C, and an iron…

Q: A 10 N component is connected to a 12 V battery. How much energy is expended per second?

A: Given:- R= 10 Ω V= 12 V Find:-  How much energy expended per second?

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

A: Answer             b. 42.00

Q: How much power, in W, is flowing through a 200 Ohm resistor connected to a 9 V battery?

A: Given that : Resistance ( R ) = 200 Ω Voltage ( V ) = 9 V To Find ,  Power ( P )

Q: The adjacent figure is the l-V curve of a solar cell operating at T=30OK. The filling factor of the…

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Q: The power rating of the heater a Nichrome wire that has a total resistance of (8 N) and carried a…

A: Solution: Calculate the potential difference across the Nichrome wire. V=IR Here, V is the voltage,…

Q: What is the rate of the flashlight’s energy consumption, in watts, if it operates at a voltage of…

A: Rate of energy consumption is called Power. Power of flash light can be given as: P=VI Current…

Q: A ribbon of nichrome (resistivity = 1.00 A 10-6 Ω m) with a rectangular cross sectional area of…

A: Resistance of wire is given by,  R=ρlA Here, ρ is resistivity of wire, l is length of wire and A is…

Q: A copper wire of 10 2 and length L. At what point along its length must the wire be cut out so that…

A: Since, resistivity is property of the metal, it would be the same for each part of the wire.…

Q: The heating element of an electric coffee maker operates at 120 V and carries a current of 2.00 A.…

A: The power required by the heating element is

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

A:

Q: no flow oI is the total resistance, in ohms, of a 30-meter roll of a 0.32-m² copper wire? The…

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

A: (e) 163.50   is correct . Complete explanation is in next step.

Q: The power consumed by a device drawing a 0.8 A when connected to 120 V is A) 12 W B) 15 W C) 60 W D)…

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

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.