Full Answer
What are the voltage and power ratings of a light bulb?
Question: The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W. Assume the resistance of the filament of the bulb is constant and is independent of operating conditions.
What is the resistance of the filament of an electric bulb?
An electric bulb is rated 60 W, 220 V. The resistance of its filament is An electric bulb is rated 60 W, 220 V. The resistance of its filament is given by using the P=V 2/R Was this answer helpful? Filament resistance of an electric bulb is 660 ohm. Potential difference of two points 220 V. Find the current flowing through the filament.
What is the voltage of a 220V light bulb?
An electric bulb is rated (60W, 220 V). If it is operated at 110 V, then find the power consumed by it. (60W,220V) means the bulb will consume 60 W power when it is connected to a supply of 220 Volts. Applied voltage = 110v
What is the power consumption of an electric bulb?
An electric bulb is rated 60W, 220 V . If it is operated at 110 V, then find the power consumed by it. An electric bulb is rated 60W, 220 V . If it is operated at 110 V, then find the power consumed by it. An electric bulb is rated (60W, 220 V).
What is the resistance of a 60 watt light bulb?
240 ohmsNote – A light bulb rated at 60 watts at a voltage of 120 volts has a different filament resistance to consume 60 watts instead of 100. The filament in a 60 watt bulb has a resistance of 240 ohms as compared to 145 ohms for a 100 watt bulb.
How do you find the resistance of a 60 watt bulb?
This is Expert Verified AnswerP = VI.P/V = I.V= IR.V/I = R.240 Ω = R.
Which has less resistance a 100 W bulb or a 60 W bulb?
The 60 watt bulb has a higher electrical resistance.
How do you calculate the resistance of a light bulb?
The resistance of the bulb is found theoretically using the formula R = V 2 / P . In this demonstration we measure the resistance of such a bulb using a multimeter and compare measured value with the theoretically calculated value. The results give an insight into the temperature dependence of resistance.
How do I calculate resistance?
If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm's Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.
Which one has a higher resistance a 100 watt bulb or a 60 watt bulb?
60 watt bulbBecause we know that power is inversely related to resistance, a 60 watt bulb has a larger electrical resistance than a 100 watt bulb.
What is the resistance of a 60 W 220 V bulb?
100 ohm or 1 ampere.
Which bulb has more resistance 60W 220V or 100w 220 V?
Thus, 60W,220V will have greater resistance.
Which one has more resistance 100w or 60W bulb both operating at 220V?
Which one has more resistance 100 watt bulb or 60 watt bulb both operating at 220 V The resistance of 60 watt bulb is greater than the resistance of 100 watt bulb. W . LA. Was this answer helpful?
What is the resistance of a 40 W 120V light bulb?
It also means the switches and wires see roughly 10x larger current surge when the light is turned on. So a 40W bulb at 120V would be 360 ohms, and you measure 26 ohms when cold.
What is the resistance of a 120V light bulb?
For example, a 100 watt light bulb operating on 120 volts AC will have 144 ohms of resistance and will draw 0.833 Amps.
What is the resistance of electric bulb?
The filament of a light bulb is an extremely thin wire. This thin wire resists the flow of electrons. You can calculate the resistance of the wire with the resistance equation. So the resistance is 120 ohms.
What is the resistance of a 60 W 220 V bulb?
100 ohm or 1 ampere.
How do you find the resistance of a watt?
If we assume a resistor with a fixed resistive value of 100 Ohms, passes a current of 0.5 amperes (500mA), then the power dissipated by it will be, from Ohm's Law, P = I2R = 25 watts, which is equivalent to 25 joules of work per second.
What is the resistance of a 60 W 120 V light bulb in operation?
240 ΩIn fact, the 120-Watt bulb would have a current of 1 Amp and a resistance of 120 Ω; the 60-Watt bulb would have a current of 0.5 Amp and a resistance of 240 Ω.
How do you find resistance when given Watts?
Ohms Law and PowerTo find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω)To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps)To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)
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