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A light blub has a resistance of 96.8 ohms What current flows through the bulb when it is connected to a 120 V source of energy?
Wiki User
∙ 14y ago
V = I x R so 120/96.8 = 1.24 Amps.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoIts 1.24 A
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How does electric resistance relate to energy transformation?
Power in a circuit is inversely proportional to the resistance, all other things being equal. Voltage equals amperes time resistances, so amperes equals voltage divided by resistance. Watts equals voltage times amperes, so watts equals voltage squared divided by resistance.
How current coil is connected in energy meter?
It's connected in series with the load.
What happens to the energy in a circuit when the current passes through a component?
A: If there is resistance within the device it will cause to dissipate some of the energy as heat. The rest will continue
Watt is the current allowed to flow through a bulb?
The current flowing through a bulb is equal to the (voltage across the bulb) divided by the (bulb resistance), and can be expressed in Amperes. The rate at which the bulb dissipates energy is equal to (voltage across the bulb) times (current through the bulb), and can be expressed in watts.
Why is heat observed when current flows through the circuit?
The heat observed in a circuit is the result of electrical resistance.Under normal circumstances, every electrical circuit has a certain amount of resistance to the flow of electricity. Electronflow opposed by the physical nature of the conductor. This is the fundamental nature of electrical resistance. Whenever this happens, the energy of those electrons is absorbed by the conductor (as opposed to flowing through) which then emitts this captured energy as heat. The higher a conductor's resistance, the more electrical energy is converted to heat by it.
When a current passes through a resistance what is the electric energy that is lost?
Becomes heat.
When a current passes through a resistance what happens to the electric energy that is lost?
Becomes heat.
What is the amount of electric energy supplied if the current and voltage are doubled?
Energy is measured in the SI unit Joule. One definition of a Joule is one ampere passing through a resistance of one ohm for one second. Thus doubling the electrical current (amperes/amps) passing through a resistance of one ohm for one second will double the energy. As for voltage, given that voltage (volts) = current (amps) times resistance (ohms) then, assuming a constant resistance, the voltage will double if the current doubles. Thus doubling the voltage (and therefore the current) passing through a resistance of one ohm for one second will double the energy (joules).
Why is energy lost while transmitting low voltages over a transmission line?
Because there is resistance in the line. Pushing a current through a resistance generates heat, which is wasted energy.
Why does a light bulb filament get hot when electric current flows through it?
That is the result of resistance in the wire. In energy terms, some of the energy in the electric current is converted into heat.
Why does a heating element get hot when current flows?
The current is doing work against the resistance of the material which makes up the heating element.Because it has resistance.-- Whenever electric current flows through a resistance, it loses energyequal to (current-squared) x (resistance).-- When we connect components in an electrical circuit, we use wire withthe least possible resistance, so as not to lose energy in the wiring.-- When we want to warm up the lab, we use wire with significant resistance,in order to have it dissipate significant energy and radiate heat.
What else increases as energy carried by a current increases?
The amount of electric energy that is converted into thermal energy increases as the resistance of wire increases. As the resistance in the current increases, the current in the circuit decreases.
What is insulation resistance in capacitor?
ideally there will not be any resistance to the capacitor,so at this condition it should not not discharge the stored energy. but practically small resistance will be there in the capacitor so the energy stored by the capacitor will be discharged through resistance.
What is the output when a fully charged capacitor connected parallel to the inductor?
When an inductor is suddenly connected in parallel with a charged capacitor, the current through the inductor and the voltage between its ends will oscillate at the frequency of F = 1 / 2 pi sqrt(L x C) . With real-world components, having resistance and connected through wire that has resistance, the amplitude of the oscillation will steadily decrease as energy is lost in the circuit, and the oscillation will eventually become too small to measure, and disappear.
Why the current is reduced as electrons move through a conductor?
I assume you are referring to electrical resistance. Basically, some electrons in a current will collide with atoms or other electrons, and lose energy in the process. This energy, of course, has to come from somewhere - so the current loses energy.
Why does heating element get hot when current flows?
The current is doing work against the resistance of the material which makes up the heating element.Because it has resistance.-- Whenever electric current flows through a resistance, it loses energyequal to (current-squared) x (resistance).-- When we connect components in an electrical circuit, we use wire withthe least possible resistance, so as not to lose energy in the wiring.-- When we want to warm up the lab, we use wire with significant resistance,in order to have it dissipate significant energy and radiate heat.
How does electric resistance relate to energy transformation?
Power in a circuit is inversely proportional to the resistance, all other things being equal. Voltage equals amperes time resistances, so amperes equals voltage divided by resistance. Watts equals voltage times amperes, so watts equals voltage squared divided by resistance.
