It depends on how many volts it has.
5
6 amperes
Ohm's Law: Current = Voltage divided by resistance 9 volts divided by 3 ohms = 3 amperes.
To answer this question the voltage has to be given. I = W/E. Amps = Watts/Voltage.
This may vary by make and model of toaster and the intended operating voltage. For a North American toaster designed to operate on a 15 ampere outlet at 120 volts RMS, the hot resistance cannot be any less than 8 ohms. By their nature, heating elements have a lower resistance when cold, so an 8 ohm element needs to be used on a circuit that is protected by a thermal time-delay circuit breaker; an ordinary fuse is likely to burn out during the several seconds it takes for the element to heat up and the current to reach the steady-state "hot" current. Due to the uncertainty of the circuit protection scheme, manufacturers will limit the current, and thus the power level of appliances such as toasters to something less than the maximum theoretical capacity of the circuit. For example, a toaster with an 8 ohm steady state hot resistance will draw 1800 watts. More realistically, the device will be designed to draw 1200 watts, and thus its hot resistance will be 12 ohms.
Have to know the wattage or resistance of the lamp to answer this question.
6 amperes
Ohm's Law: Current = Voltage divided by resistance 9 volts divided by 3 ohms = 3 amperes.
The apmeres depend on the resistance of the circuit. The battery will be a certain voltage, and dividing the voltage by the resistance gives you amperes. V = I*R
To answer this question the voltage has to be given. I = W/E. Amps = Watts/Voltage.
That depends a LOT on its power rating, but especially on how many minutes you use it every day, on average. Look at your toaster - electrical equipment usually has a power rating. If a power rating in watt is not given, you can multiply volts x amperes. If it says something in watts, convert that to kilowatts. Make an estimate, how many hours you turn the toaster on in a year. Multiply the kilowatts x the number of hours.
That depends a LOT on its power rating, but especially on how many minutes you use it every day, on average. Look at your toaster - electrical equipment usually has a power rating. If a power rating in watt is not given, you can multiply volts x amperes. If it says something in watts, convert that to kilowatts. Make an estimate, how many hours you turn the toaster on in a year. Multiply the kilowatts x the number of hours.
If this is a homework assignment, please consider trying to answer it yourself first, otherwise the value of the reinforcement of the lesson offered by the assignment will be lost on you.If a 100-watt bulb draws 0.87 amperes of current, 17 of them will draw about 14.8 amperes, (0.87 times 17), if they were wired in parallel.However, wiring them in series would not give you 0.051 amperes, (0.87 divided by 17), as one might expect, because the resistance-temperature coefficient of bulbs is quite dramatic, so more current would actually be drawn because the bulbs would be much cooler. How much more would require testing. You could do this by supplying 6.8 volts to one bulb and seeing what you get, or just hook 17 of them up in series to 115V.
This may vary by make and model of toaster and the intended operating voltage. For a North American toaster designed to operate on a 15 ampere outlet at 120 volts RMS, the hot resistance cannot be any less than 8 ohms. By their nature, heating elements have a lower resistance when cold, so an 8 ohm element needs to be used on a circuit that is protected by a thermal time-delay circuit breaker; an ordinary fuse is likely to burn out during the several seconds it takes for the element to heat up and the current to reach the steady-state "hot" current. Due to the uncertainty of the circuit protection scheme, manufacturers will limit the current, and thus the power level of appliances such as toasters to something less than the maximum theoretical capacity of the circuit. For example, a toaster with an 8 ohm steady state hot resistance will draw 1800 watts. More realistically, the device will be designed to draw 1200 watts, and thus its hot resistance will be 12 ohms.
It will take 36 volts to make 12 amps go through 3 ohms of resistance. Ohm's law states that the current in amperes is equal to voltage over resistance.
A welding machine rated at 500 amperes uses around 120000 watts of power. This is used in very heavy industrial applications due to its large power draw.
Have to know the wattage or resistance of the lamp to answer this question.
Just use Ohm's Law: V=IR (voltage = current x resistance; using units: volts = amperes x ohms).