4 ohms equals how many watts?
606257
With a 4 ohm speaker, the maximum output power will be 200 watts. With a 16 ohm speaker, the maximum output power will be 50 watts.
1132940
For example if the power is 100 watts and the voltage is 50 volts, the current is 100 / 50, or 2 amps. Calculate the resistance, in Ohms, by dividing the voltage by the current. Ohms law states that voltage = current x resistance, so by rearranging the formula resistance = voltage / current.
726054
50W x 4 stands for 50 watts for 4 channels (front left, front right, rear. left and rear right) in a normal factory configuration ie. 4 speakers. When you have tweeters + your existing 4 speakers, you're basically. pumping 6 channels with 4 channels of power.
306435
So the power dissipated by the 5 ohm resistor is P = I^2 R = (3 amps)^2 * (5 ohms) = 45 watts. Feel free to make any corrections.
1378029
It is rated to be 200 Watt for a 120 V supply. therefore R = 72 Ohms. I = 1.67 Amps.
1312321
Thus - 1 (Amp) x 1 (Volt) = 1 Watt. say any Electric Appliance (May be an Electric Heater) having power of 1 Kilo Watt (i.e. 1000 watt), at Supply Voltage of 230 Volts, will draw a current = 1000(Watt)/ 230(Volts) = 4.3 Amps (aprox.) 60 Hertz in 1 Watt!
557625
You'll get four times the power because the power is voltage times current (2 x 2 = 4). A lower impedance speaker will accept more power. For example, a 4 ohm speaker will extract more power from your amplifier than a 8 ohm speaker, about twice as much.
561832
For any circuit element, the power is equal to the voltage difference across the element multiplied by the current. By Ohm's Law, V = IR, and so there are additional forms of the electric power formula for resistors. Power is measured in units of Watts (W), where a Watt is equal to a Joule per second (1 W = 1 J/s).
261556
These are all units of measure and they are intertwined in electrical relationships known as Ohm's Law and Watts Law. Ohms law tells us that Ohms are equal to volts divided by amps, while Watts law tells us that Watts are equal to Volts x Amps.
595170
In a resistive load you simply multiply the voltage times the current. So 13 amps times 220 volts gives 2,860 watts.
1472866
Step A: Convert watts to amps Amp-hours (at 12 volts) = watt-hours / 12 volts = 1470 / 12 = 122.5 amp-hours.
231640
So say 120 Volts x 20 amps, is 2,400 Watts. Amperes are units of current. Volts are a measure of voltage.
1222120
Calling it a 4-ohm refers to its output impedance. There is no problem with connecting a 3-ohm speaker to that amplifier. ... However, if your amplifier is built to deliver it's rated output to a 4-ohm speaker, then your speaker will draw more current.
10201
Knowing that a 40VA transformer will produce 24 volts, Ohms law can be used to determine what amperage the transformer can operate at before burning up. 40 Watts / 24 Volts = 1.66 Amps. This 1.66 Amps is the amount of current that can safely be drawn on the 24volt R or C control circuit wire.
313412
Assuming a 120VAC fixed-voltage source, 120 Watts corresponds to one Ampere, because the definition of electrical power is that one Watt equals one Volt times one Ampere.
1170320
For electronic calculations (voltage and wattage) the 0 dB references are: 0 dBu (or dBv) = 0.775 volts 0 dBV = 1 volt 0 dBm = 1 milliwatt (0.001 watts). The standard reference value for 0dBm is 0.775 volts into a load of 600 Ohms.
939449
The number of watts is equal to amps multiplied by volts. That's it! In other words, watt=amp X volt. Sometimes you will see this formula written as W=A X V.