Firstly, ohms are not given out by Watts; each is a completely different unit. Secondly, without knowing the current, the resistance cannot be calculated from the informatio given.
Ohms Law states: Volts = Amps x Resistance (In Ohms)
Watts = Volts x Amps
Resistance = Watts / (Amps x Amps) or (Volts x Volts) / Watts
If you are referring to normal residential voltage just insert that value for volts in any of the equations above.
Additional information:The resistance of a 12 AWG solid copper wire is about 5.21 ohm/km compared to 5.32 ohm/km for a 12 AWG stranded wire.VOLTS x (VOLTS/OHMS) = WATTS 240 X (240/8) = 7200 Watts = 7.2KWatts
Hair dryers usually have a HIGH and a LOW setting. The HIGH heating element is about 8 ohms. The LOW heating element is about 32 ohms. voltage (squared) / resistance = power (watts) 120*120 / 8 = 1800 watts ( HIGH ) 120*120 / 32 = 450 watts ( LOW ) When the voltage switch is set to 240 volts, ALL it does is limit the HIGH/LOW switch to the LOW setting. 240*240 / 32 = 1800 watts ( LOW ) 240*240 / 8 = 7200 watts ( HIGH ) (the heating element would burn out)
To provide 240 ohms of resistance. What those 240 ohms do in an actual circuit depends on the intention of the designer.
That depends on the resistance (in ohms). We can't tell you the wattage without knowing that.
The unit of power is expressed in watts, and the product of current (Amps) and voltage (volts) is power there fore if you multiply the amps and the volts give watts. so 20 x 240 will give you a 4800 watts of power.
100v at 1A is 100 watts, 240 v 5A is 1200 watts. The other numbers give intermediate amounts of watts.
R = U / I = 240 / 20 = 12 Ohms.
current = voltage/resistanceAssuming the 240 volts is across the 100 ohm wire, 2.4 amperespower = current * voltageResulting in the wire dissipating 576 watts... One hot wire!
There are zero watts in 240 volts. To determine watts, an amperage or a resistance must be supplied. W = Amps x Volts, W = Amps (squared) x Resistance (in Ohms), or W = Voltage (squared)/Resistance.
Power (Watts) = Current (Amps) * VoltagePower = 22Amps * 240 VoltsPower = 5,280 Watts5280
240 watts at 120 volts requires 2 amperes. Power = voltage * current
To calculate power in watts, you multiply the current in amps by the voltage in volts. So, 7 amps at 240 volts would be 1680 watts (7 amps * 240 volts = 1680 watts).