Ask Experts Questions for FREE Help !
Ask
    saltwater1's Avatar
    saltwater1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 27, 2009, 12:52 PM
    Amps per watt
    Hello. I am powering a 250 watt metal halide lamp how much amps will it use or do I need
    450donn's Avatar
    450donn Posts: 1,821, Reputation: 239
    Ultra Member
    		  
    #2

    Jan 27, 2009, 01:24 PM

    Look up Ohms law and you will get your answer
    bhanna1's Avatar
    bhanna1 Posts: 22, Reputation: 1
    New Member
    		  
    #3

    Jan 28, 2009, 05:56 AM

    Ohm's law is stated as follows:
    P=IxE
    P is power Or watts
    I is current or amps
    E is applied voltage
    In your situation, assuming that you are using 120 volts, the answer to your question is as follows:
    P (250)= I(x for unknown amps)x E (120 volts)

    250=120x
    x=250 divided by120
    x=2.08333333 amps
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Cost to upgrade from 100 amps to 200 amps and ground [ 4 Answers ]

StanFortyMan has made a lot of sense about my needs in a home with a 100 AMP Service.. I would like to upgrade to 200 amps.. with some ground sockets(or whatever this is called) and put in more sockets... The house is 1300 square feet... does anyone have a guestimate of costs?? Thanks, Annie

Watt [ 1 Answers ]

I am trying to figure out how many watts per square foot I have in some of my offices using the amps and volts to the breaker box. This is commercial space so the voltages and amps are higher than resindental.

How many amps can I run on an 800 watt inverter? [ 1 Answers ]

Hello, I would like to know how many amps I can run on an 800 watt inverter. I am using mini Christmas lights, Coleman 800 watt inverter and a deep cycle 12 volt battery. Thanks, Steve

100 household amps vs 200 amps [ 6 Answers ]

I am living in an "old" house with 100 amps coming in. I am in the process of doing reconstruction and would like to know if I run all new wires and outlets and get rid of dusty broken wires and connection boxes left open to rot---Can I use the same fuses and wiring for 100 as for 200 or do I...

Changing from 100 amps to 200 amps [ 1 Answers ]

I have a gas water heater (40 gallon tank). I want to change it to an electric tankless water heater. I have read that I need 200 amps in the house to do this, but currently I have only 100 amps. The outside meter is located only about 25 feet away, but the lines are underground. What is...

View more questions Search