# What is the resistance of a 12v 10w bulb?

What is the resistance of a 12v 10w bulb? 10 watt bulb, cold, 1.6 ohms.

What is the resistance of a 12 volt bulb? Each incandescent bulb (12-volt/system) measures 1.5 ohms with a meter; however, there is no resistance across the LED [replacement] bulbs.

What is the resistance of a 12v 5w bulb? I think that the resistors that are shown in the original link are for side light bulbs which are 5w, which at 12v give a resistance of approx 30 ohms.

How do you calculate the resistance of a light bulb? Since it involves the relationship of power voltage, current, and resistance, using the formula I=P/V with P and V known to find the current, and then using the formula R=P/I^2 to find the resistance will be the right steps to take.

## What is the resistance of a 12v 10w bulb? – Related Questions

### What is the resistance of a 12v 21W bulb?

21W Bulb: R = 144/21 => 7 Ohms (rounding up). If you have wired the turn signal to the parking light then you shouldn’t get an error (the parking light is assuming a resistance of less than 28.8 Ohms is a blown bulb).

### What is the resistance of a car bulb?

Your 55-watt headlamp bulb draws 4 to 5 amps from the car’s electrical system, and we can calculate that it has a resistance of about 3 ohms.

### What is the resistance of a car light bulb?

The resistance of each brake light bulb on an automobile is 6.9 Ω. Use the fact that cars have 12-V electrical systems to compute the current that flows in each bulb.

### What is the resistance of a 60 W 120 V lightbulb?

The 120-Watt bulb has the lower resistance; and using Ohm’s law, one would expect it also has the higher current. In 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 calculate the 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.

### What is the resistance of a 60 watt light bulb?

The filament in a 60 watt bulb has a resistance of 240 ohms as compared to 145 ohms for a 100 watt bulb. The above assumes that the voltage source is constant at 120 volts.

### How many watts is a car headlight?

Headlight bulbs do come in different wattages. The higher the wattage the more lumens a bulb will put out. Standard halogen replacement bulbs are generally 55 watts for most vehicles while HID bulbs run at around 35 watts.

### What voltage are car headlights?

When the engine is running, the electric generator, also called the alternator, supplies the electrical systems with 13.6 to 14 volts, though some of that always is lost in the wiring. Headlight lamps therefore are designed for 13.2 volts.

### How many lumens is a car headlight?

Generally, it differs from state to state and jurisdiction to jurisdiction but the average and safe lumen in car headlights should fall between 2,000 – 4,000 lumens.

### What is the current in a 60 watt bulb connected to a 120 volt source?

Question: Problem 3 A 60-W (60 Watts) light bulb connected to a 120-V (120 Volts) source draws a current of Answer: 0.5 A (0.5 Amps).

### What is the resistance of a 100 watt 120 volt 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 a 150 W light bulb running on a 120 V circuit?

It is given that the power rating of the electric bulb is 150 W, the resistance of the filament is 2 ohm and it is connected across a voltage source of 120 V. The power consumed is equal to 150 = 120*I where I is the current flowing through the resistor.

### What is 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.

### How do you convert watts to ohms?

Volts to ohms calculation with watts

Calculate the resistance in ohms of a resistor when the voltage is 5 volts and the power is 2 watts. The resistance R is equal to square of 5 volts divided by 2 watts, which is equal to 12.5 ohms.

### Which has more resistance 60 watt or 100 watt?

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 does a LED headlight use?

The average power consumption for an LED headlight bulb is very limited, usually from 15 watts to 45 watts, before it gets too hot and burns out.

### How many watts are LED headlights?

The average power consumption for an LED headlight bulb is very limited, usually from 15 watts to 45 watts, before it gets too hot and burns out.

### What is the standard headlight bulb?

Philips 9005 Standard Halogen Headlight Bulb (Pack of 1)

### How many volts are LED headlights?

LED lights require a certain voltage, such as 24 or 12V. When they run at higher voltages, they become extremely hot.

### How many lumens is a LED headlight?

Brightness. The intensity, strength, and overall brightness of an LED headlight bulb is measured in lumens. One lumen is equal to the light produced by a single candle. Low-intensity LED headlights offer about 6,000 to 8,000 lumens.

### How much current flows through a 60 W light bulb that is connected to a 120 V electrical line?

How many amperes flow through a 60-W bulb connected in a 120 V circuit? Ans. Power= current x voltage. Rearranging terms we find that current = power/voltage = 60W/120V = 0.5 Amps.