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

###### Wiki User

###### March 09, 2009 4:36PM

which has more resistance 100 watt bulb or 60 watt bulb?

In short, the 60 watt bulb has more resistance.

Power can be calculated using the following formula: P = (V^2)/R The power rating for a light bulb is measured using a 120 Volt source. Since the voltage will be the same for both light bulbs, using the formula, the bulb with the lowest resistance would have the greatest power.

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energy is energy It does not matter what you are using the
energy for, it matters how much energy you are using A 200 watt
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uses more energy than a 100 watt light bulb

###### Asked in New Electrical Work, Science, Home Electricity, Electrical Engineering

### Which consumes more electricity a halogen bulb or an incandescent bulb?

How much electricity is consumed depends only on the power
Wattage of the light bulb.
No matter what types of bulbs they are, a 100 Watt bulb will
always consume more electricity than a 60 Watt bulb.
The type of bulb makes no difference to how much electricity is
consumed but does make a big difference to the amount of light that
is produced.
In general:
* a 100 Watt halogen bulb will produce more light than a 100
Watt normal incandescent light bulb;
* a 20 Watt compact fluorescent light (CFL) bulb will produce
about the same amount of light as a 100 Watt incandescent light
bulb.

###### Asked in Home Electricity

### Why is 100 watts lamp bulb brighter than a 60 watts lamp bulb?

Original answer:
Because it gives off more power.
Updated answer:
In general, because the 100-watt bulb produces more total light
(lumens) because it also consumes more power than the 60-watt bulb.
However, a 60-watt can produce more lumens than a 100-watt bulb,
depending on the types of bulbs in question.

###### Asked in Home Electricity, Appliance Voltage and Travel Issues, Electrical Wiring

### The problems of electricity two light bulbs of 100 watt and one 60 watt both operation in a 220V circuit Which bulb has the higher resistance and which bulb carries the greater current?

A 100 watt 220 volt light bulb (or anything consuming 100 watts
on 220 volts) draws 100/220, or .45 Amps. It will also have about
220²/100, or 484 ohms resistance.
A 60 watt 220 volt light bulb (or anything consuming 60 watts on
220 volts) draws 60/220, or .27 Amps. It will also have about
220²/60, or 807 ohms resistance.

###### Asked in Home Electricity

### Why is a 100 watt light bulb brighter than a 40 watt light bulb?

Because more energy goes through it, you pay more and you get
more result.
Answer
A 100-W lamp has a lower operating resistance than a 40-W lamp.
Since power is equal to the voltage squared divided by the
resistance, for a given voltage the power will be higher and its
operating temperature (therefore brightness) will be higher.

###### Asked in Home Electricity

### Is a 10 watt bulb the same as a normAl 40 watt bulb?

Electrically, a 10-watt bulb uses 75% less energy than a 40-watt
bulb. For the same circuit voltage, let's say 120v, a 10-watt bulb
would only draw 0.083 amperes, compared to 0.33 A for a 40-watt
bulb.
Light-output-wise, they may not have the same ratio of light
output. If a 40-watt lightbulb provides 400 lumens of light, a
10-watt lightbulb that is more energy-efficient than the 40-watt
bulb may produce more than 100 lumens which is greater than 1/4 of
the light output of the 40-watt bulb. A 10-watt bulb that is less
energy-efficient than the same 40-watt bulb would produce less than
100 lumens of light.