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Ohms does not equal watts. You need to know what voltage is across the resistor to determine how many watts it is drawing or how many watts the resistor should be rated for.
Power is the voltage across the resistor SQUARED divided by the resistance. If this 4 ohm resistor has 12 volts across it then the watts power is (12 x 12) / 4 = 36 watts.
1 Watt equals 1 Volt times 1 Amp.
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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 many watts does a charger have?
It depends on what kind of charger your talking about. Im assuming some type of smart phone charger... typically about 5.1 volts at .8 to 1 amp.... current ( amps) times voltage equals power (watts) so.. around 4 to 5 watts
Three resistors R1 2 R2 4 and R3 6 are connected in series to a battery of 36 V The total resistance in the circuit is?
Resistors placed in series create a total resistance that is found by simply adding the values of the resistors. (Knowing the applied voltage isn't necessary to solve this problem.) Rt = R1 + R2 + R3 = 2 ohms + 4 ohms + 6 ohms = 12 ohms
How many factors are in 9 times 4 equals 36?
Two factors. 9 and 4 are factors of 36.
Can you bridge an 8 ohm speaker to 4 ohms?
Ohms is a measure of resistance. When the electricity passes into the speaker, some of it is 'resisted.' The ohms rating of the speaker is how much is resisted, and an indication of how much energy it takes to drive it - the higher the ohms rating, the more difficult it is to drive.
