After the steady state , the temperature of a conductor doesnot rise , even though heat is supplied , Why?

Q: How does the flow of current differ in a superconductor compared with the flow in ordinary…

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Q: A short circuit in a 120-V appliance cord has a 0.500- Ω resistance. Calculate the temperature rise…

A: Basic Details The amount of heat emitted by the appliance depends on the voltage, the resistance and…

Q: Discuss how the Hall effect could be used to obtain information on free charge density in a…

A: To find: Discuss how the Hall effect could be used to obtain information on free charge density in a…

Q: What happened for a conductor at a constant voltage and raising the temperature applied to it? Also…

A: Explanation: Ohm's law states that the current is directly proportional to the potential difference…

Q: The resistance of a rod does NOT depend on: O its conductivity O its material O its temperature O…

A: Introduction: Resistance is a measure of the opposition to current flow in an electrical circuit.…

Q: What is the differance between Conductors and Insulators ?

A: Conductors are the substance that allow free flow of current.It transfers energy in the form of…

Q: A typical commercial airplane is struck by lightning about once per year. When this happens, the…

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Q: suppose you leave a 50 w bulb on for a month approximately how much energy does it use

A: Given data: Power (P) = 50 W Time = 1 month Required: Energy (E) used

Q: Does heating a metal wire increase or decrease its electrical resistance?

A: When a metal wire is heated, the electrons in the wire gets thermal energy and it gets more vibrant…

Q: Describe experiments to demonstrate good and bad conductors of heat

A: Take a rod of that material and stick some wax balls on the rod such that they are equidistant from…

Q: What condition is necessary for the sustained flow of water in a pipe? What analogous condition is…

A: Condition is necessary for the sustained flow of water in a pipe is the pressure difference provided…

Q: what happens to the current passing through an ohmic material if its temperature is increased?

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Q: Does current get used up in a light bulb?  Do charges get used up?  Do electrons get used up?…

A: Current is the flow of charge. i.e

Q: A wire is 1.1 m long and 1.2 mm2 in cross-sectional area. It carries a current of 4.8 A when a 2.4 V…

A: The length of the wire L = 1.1 m  The cross-sectional area of the wire = 1.2 mm2 The carries a…

Q: The temperature of copper wire is raised. Its esistance remains the same Ɔ a. decreases increases Ɔ…

A: As the temperature of the copper wire is increased . The flow of electrons is interrupted due to…

Q: Consider a water pipe that branches into two smaller pipes. If the flow of water is 10 gallons per…

A: The flow of water in main pipe,

Q: What happens to the brightness of light bulb when the current flowing through it decreases?

A: The brightness of a bulb depends on its power.Write the expression for power

Q: An electric heater works by passing a current of 100 A though a coiled metal wire, making it red…

A: Given i = 100 A , R = 1.1 ohms By ohm's law  V = iR

Q: Consider two cylindrical conductors made of the same ohmic material.

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Q: If it takes 8 minutes to boil a quantity of water electrically, how long will it take to boil the…

A: Given  Time to boil water t1=8min Initial current I Final current I2=2I

Q: How can electrical demands of a device be calculated?

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Q: Of what material is a resistor made if its resistance is 40.0% greater at 100°C than at 20.0°C?

A: Given, Resistance is 40.0% greater at 100°C than at 20.0°C Let T1=20 c T2=100c Resistance at 20c=Ro…

Q: What the distinction between resistance and resistivity? Which is proper, to speak of the resistance…

A: Resistance is just the property of the conductor that's function can be easily understood from its…

Q: An immersion heater is a small appliance used to heat a cup of water for tea by passing current…

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Q: A 200-m length of copper wire has a resistance of 2.0 ohms. Its cross-sectional area is?

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Q: the length of a conductor is halved and its area of cross section is doubled, the resistance of the…

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Q: In Metal (Conductor) there is no(………

A: We already know that a Conductor material contain free charges and these free charges can move…

Q: An electrified needle is used to burn off warts, with the circuit being completed by having the…

A: An electrified needle is used to burn off warts.

Q: A current of for 31s. whot a mount of chasige Persses throogh The conductoo ? 1.8 A flows through a…

A: Given data :       Current  =  I        Time  =  t      To find :         Charge

Q: Name the device used to decrease the volatge at sub station for its supply?

A: Voltage and current at substation is altered with the help of a device known as Transformer.…

Q: The resistance of a rod is INDEPENDENT of: O Its length. O Its material. Its temperature. O Its…

A: Introduction: The resistance is the property of the material which resists the flow of electric…

Q: A current of 10A flows through a conductor and 10W is dissipated. What p.d. exists across the ends…

A: Given data:  Current (I) = 10 A Power (P) = 10 W Required: Potential difference (V)

Q: Some appliances are double insulated what does that mean?

A: Some appliance are double insulated because of safety purpose

Q: How can we use electricity to check the reliability of a concrete bridge made with carbon fibers?

A: Step 1 The ultrasonic pulse velocity test can check the reliability of a concrete bridge made with…

Q: - A resistor carries a current of 25 A when the potential difference across it is 7 V. What is the…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: How does the heat emitted by lamps affect their efficiency?

A: A light bulb converts the electrical energy to light energy. The most efficient electric bulb would…

Q: The value of current during conductor materials depend on O length amount of charge O voltage of…

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Q: An incandescent light bulb is partially evacuated. Why do you suppose that is?

A: The hot filament in the bulb produces huge amount of heat. The bulbs are partially evacuated to…

Q: In a conductor, electrons are a. Free to move a macroscopic distance across the material b.…

A: There are various types of materials. Some have electrons tightly bound to the nucleus and are not…

Q: Over time, atoms “boil off” the hot filament in an incandescent bulb and the filament becomes…

A: The quantity that provides an obstruction to the path of current is called resistance. The…

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A: Answer

Q: How could a battery, a light bulb, and some lengths of metal wire be used as a conductivity tester,…

A: A bulb is a electrical object which glows  when the electric current passes through it . and when…

Q: How much charge passes a given point in a conductor when a current of 10 A flows for 25 seconds ?

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Q: Explain why birds can sit on power lines safely, eventhough the wires have no insulation around…

A: Let us consider a bird sitting on power lines and on the other hand a metal ladder is leaning on the…