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Power equals voltage times current in amps. The value of amps used is needed to do the math.

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Q: How many volts amps required a 12 volt audio radio?
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How many amps are required for 100W light bulb operate on 110 volts?

amps equals watts divided by volts.

What is the power required used by a flashlight that needs 12 volts and runs on 0.25 amps?

Just multiply the volts by the amps, 12 x 0.25 is the answer.

What voltage required to send a current of 4 amps through a resistance of 60ohm?

16 volts

What is the formula for finding out how many amps is required to achieve the full 100 watt output from a 9 volt bulb?

The formula is volts times amps equals watts, or watts divided by volts equals amps.

How do you convert 2500kw to amps?

Watts = Amps x Volts x Power factor Hence, more information is required to answer your question.

How many volts it takes to cause a current of 1.95 amps to exist in a 200 watt lamp?

The formula to calculate the relationship between amps, volts and watts is Volts X Amps = Watts or Volts = Watts / Amps or Amps = Watts / Volts therefore; 200 Watts divided by 1.95 Amps is 102.5641 Volts.

If voltage is 12 volts and ohms is 0.5 how many amps in circuit?

Ohm's law: Volts = Amps * Ohms, or Amps = Volts / Ohms 12 volts / 0.5 ohms = 24 amps

How many amps does a 90 watt fan required?

Assuming a household voltage of 120 volts and a power factor of about .8 for the fan motor we have watts = volts x amps x PF. Amps = 90 / (.8 x 120) = 3 / 3.2 = .94 amps

4 volts is a many watts?

4 volts and how many amps? Watts = amps x volts. It depends on the amount of current (in Amps) flowing at 4 Volts... See Ohms Law: Watts = Volts x Amps If you have 2 Amps flowing at 4 Volts you are dissipating/consuming 8 Watts. If you have 10 Amps flowing at 4 Volts you are dissipating/consuming 40 Watts.

How much electricity required for a 2hp with 230 volts and 8.70 amps well water pump for residental house?

Please rephrase your question. The electricity required for your pump is 230 volts.

How many amps is 1000 volts?

Volts and amps measure two different things. Volts are used to measure potential difference. Amperes (amps for short) are used to measure current. Compare it to a garden hosepipe: Voltage corresponds to the pressure of the water, current measures how fast the water flows. 2000 millivolts equals two volts. For comparison, a single AA cell gives 1.5 volts. 1000 amps is several times the current used by the average household. A regular AA cell can provide, at maximum, about half an amp.

Using 120 volts at 12 amps is the same power as what amps at 220 volts?

6 amps.