The formula for calculating wattage is: W (joules per second) = V (joules per coulomb) x A (coulombs per second) where W is watts, V is volts, and A is amperes of current. In practical terms, wattage is the power produced or used per second. For example, a 60-watt light bulb uses 60 joules per second.
Moreover, Which has greater resistance a 100-watt bulb or a 60-watt bulb?
A 60-watt bulb has a higher electrical resistance than a 100-watt bulb. Because power is inversely proportional to resistance, when the power is less, the resistance is high.
How many watts is 3 amps?
3 Amps To Watts (Example 1)
In short, 3 amps is 360 watts.
Also How many watts is 220 volts?
| How many Volts are: | Equivalence in Watts |
|---|---|
| 120 Volts | Equivalent to 1662.77 Watts |
| 127 Volts | 1759.76 Watts |
| 220 Volts | 3048.41 Watts |
| 240 Volts | 3325.54 Watts |
What is Joule formula?
In equation form: work (joules) = force (newtons) x distance (meters), … One joule is defined as the amount of work done when a force of one newton is exerted through a distance of one meter.
19 Related Questions Answers Found
What is the resistance of a 40 watt bulb?
Assuming an incandescent bulb (a purely resistive load) and American household power of 120V, the 40 watt bulb in normal circumstances will draw 1/3 of an amp (P=VI so 40 = 120 * I, I=40/120=1/3) and thus it has a resistance of 360 Ohms (V=IR, 120 = 1/3 * R, R=360).
Does higher wattage mean more resistance?
A higher watt bulb allows more electricity through, therefore the resistance must be lower.
What is the resistance of a 60W light bulb?
A 60 W lightbulb has a resistance of 240 Ω.
How many watts can 20 amps handle?
How many Watts can a 20-Amp breaker handle? A 20-amp breaker can support up to 2,400 watts on a single circuit. The safe maximum for a 20-amp circuit is 1,920 watts, but circuits should not be loaded to more than 80 percent of their maximum capacity.
How many watts is 4 amps?
Amps to watts table (120V)
| Current (A) | Voltage (V) | Power (W) |
|---|---|---|
| 3 amps | 120 volts | 360 watts |
| 4 amps | 120 volts | 480 watts |
| 5 amps | 120 volts | 600 watts |
| 6 amps | 120 volts | 720 watts |
How many watts is 150 amps?
Equivalent Amps and Watts at 12v DC
| Current | Power | Voltage |
|---|---|---|
| 11.667 Amps | 140 Watts | 12 Volts |
12.5 Amps | 150 Watts | 12 Volts |
| 13.333 Amps | 160 Watts | 12 Volts |
| 14.167 Amps | 170 Watts | 12 Volts |
Is volts more than watts?
The measurement taken in
volts is easier as compared to watts
because watts is the product of the two quantity i.e., voltage and current. The watt is represented by W.
…
Comparison Chart.
| Basis for Comparison | Volts | Watts |
|---|---|---|
| Definition | It is the SI unit of potential difference and EMF. | It is the SI unit of Power. |
| Formula |
How do I convert volts to watts?
The formula to convert voltage to watts is watts = amps x volts.
How many volts is 100 watts?
Equivalent Watts and Volts Measurements
| Power | Voltage | Current |
|---|---|---|
| 95 Watts | 23.75 Volts | 4 Amps |
| 100 Watts | 100 Volts | 1 Amps |
| 100 Watts | 50 Volts | 2 Amps |
| 100 Watts | 33.333 Volts | 3 Amps |
Which one is correct joule is equal to?
joule = volt + coulomb.
What is a newton equal to?
Newton, absolute unit of force in the International System of Units (SI units), abbreviated N. … One newton is equal to a force of 100,000 dynes in the centimetre-gram-second (CGS) system, or a force of about 0.2248 pound in the foot-pound-second (English, or customary) system.
What is the formula for work done?
Mathematically, the concept of work done W equals the force f times the distance (d), that is W = f. d and if the force is exerted at an angle θ to the displacement, then work done is calculated as W = f .
How do you calculate the resistance of a 40 watt bulb?
Since power, P, equals iV, P/V = i, so at 120 V, a 40-watt bulb draws 1/3 A. (The units in iV are (C/s)(N-m/C), or J/s, which are watts.) For a given resistance, V = iR, so the bulb’s resistance (when it has 120 volts across it) is 120/(1/3), or 360 ohms.
Which has a greater resistance a 60 watt bulb or a 40 watt bulb?
Resistance and power are inversely proportional to each other. So, lamp powered 40 W has more resistance than a 60 W lamp.
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.
Does higher ohm mean less wattage vape?
The more watts you push through means it gets hotter, quicker. Different ohms gives a different Vape. A higher ohms coil at say, 30watts will give a much cooler Vape then a lower ohms coil at the same wattage due to the temperature it reaches and the rate it reaches it at.
Which one has more resistance 100 watt bulb or 60 watt 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.
Does more wattage produce more heat?
Power (watts) is volts times amps.” So, more electrical power means more heat just lake a bigger pile of firewood mean a bigger fire and more heat output. … So for twice the wattage, you get roughly twice the heat output.
Why does a 100 watt bulb gives more light than a 60 watt bulb?
In short, the 100W bulb is brighter because it is giving off more energy than the 60W bulb. This energy is in the form of electromagnetic radiation, which includes visible light, but also other parts of the spectrum such as infrared and UV light. More energy = more light, hence brighter.
Is a 100 watt bulb brighter than a 60 watt bulb?
60-watt bulb produces 800 lumens of light (most widely used in households) 75-watt bulb produces 1,100 lumens of light. 100-watt bulb produces 1,600 lumens of light.
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