0
What is the power when there is 500 mA of current through 4.7 Kilo ohm's of resistance?
Wiki User
∙ 12y ago
Ohm's Law: Voltage is current times resistance, so 0.5 A through 4700 Ohms is 2350 volts. Power Law: Power is voltage times current, so 2350 volts times 0.5 A is 1175 watts.
WARNING: This is both high voltage and high power. Do not attempt to duplicate this in the lab without adequate protection and appropriate components.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the voltage drop across a resistor of 300 kilo ohm?
What is the amount of current flowing through the resistor? Voltage drop is dependent on the current. Ohm x Amps = Voltage drop
Why high resistances are not used in wheatstone bridge?
Because if high resistance is like kilo mega ohm is used , corresponding current through the balanced point is in the order of micro ampere, so you have to use micro ampere sensitive ammeter , otherwise normal ammeter always show zero reading
What is the 20k and 200k setting on a digital ohm meter?
20k is equal to 20,000 ohms (20 kilo ohms) and 200k is equal to 200,000 ohms (200 kilo ohms) of electrical resistance
How do you calculate current capacity of transformer?
The secondary winding's current rating is the rated apparent power of the transformer (expressed in volt amperes) divided by its voltage rating (expressed in volts). This applies to both step down, and step up, transformers.
What does kvac mean?
K = kilo = 1000's V = volts AC = alternating current So, 12 KVAC is 12,000 volts of alternating current
If a tube light that offers a total resistance of 1 kilo ohms is connected to power supply how much current will it consume?
ANSWERS; Transparent
How much is kilo ohms?
10.2 kilo ohms is the resistance necessary for 1 volt to induce a current of 98.04 micro amperes. Ohm's law: voltage equals current times resistance.
A generator produces 100 kilo watt of power at a potential difference of 10 kilo volt The power is transmitted through cables of total resistance 5 ohmHow much power is dissipated in the cables?
If the generator is delivering 100 KW of power and the Voltage is 10 KV, then it's supplying current atI = P/E = (100,000/10,000) = 10 Amperes.If 10A is flowing through cable with a total resistance of 5 ohms, the power dissipated by the cable isP = I2R = (10)2 x (5) = 500 watts.Nice problem !
How much is 10.2 kilo ohms?
10.2 kilo ohms is the resistance necessary for 1 volt to induce a current of 98.04 micro amperes. Ohm's law: voltage equals current times resistance.
What is the difference between kilo volt and kilo watt?
A "kilo" means 1000. So a kilowatt is a thousand watts. The same applies to voltage. A kilovolt is 1000 volts. Wattage is the measurement of "electrical power". Voltage is the measurement of "electrical potential" See "Ohms Laws" for more explanation of electrical terms.'
How many watts in 5500 kilo volts?
With one amp of current flowing there would be 5500 kilowatts of power. With other amounts of current, multiply by the current.
Will you die when you touch a 100000ohms object?
100 kilo ohm resistance can not kill you since resistance is a measure of the resistivity property of an object, it resist the passing of current. However, when that object is supplied by a power source of at least 0.1 Ampere you can feel the current. At least 0.02 ampere current rating is dangerous already. 20 to 75 milliamps is very dangerous, more than that can damage heart or else lead to death.
What is the current produced by potential difference of 220 volts through a resistance of 0.2 kilo ohms?
Ohm's law: Current = voltage divided by resistance240 volts divided by 0.2 ohms = 4,800 amperes.1,152,000 watts, by the way, so don't even think about trying it.
What is the power when there are 58 m'A of current through a 4.7 kilo-ohm resistor?
By Ohm's law, voltage = current times resistance, so 50 mA of current through a 4.7 kOhm resistor yields a voltage drop of 235 volts.By the power law, power = voltage times current, so 50 mA of current and 235 volts yields a power of 11.75 watts.That is quite a bit of power, so the resistor is going to become very hot, and must be rated for that power, otherwise it will self-destruct and/or cause a fire.AnswerAn alternative, and quicker, method of solving this problem would be to simply to use the following equation:P = I2RIn which case:P = (58 x 10-3)2 x (4.7 x 103) = 15.81 W (Answer)(***The original answer used 50 mA, rather than 58 mA, by mistake.)
Will 30 volts of supplied AC voltage produce the same current as 30v of DC through 2 kilo ohm resistance?
Yes. Because the 30v ac is root-mean square value which is the value of an alternating quantity that will produce the same heating effect as the DC quantity when applied to the same resistance.
What is difference between resistance and reactance while both are measured in ohms?
Resistance is constant no matter the frequency applied. Reactance varies depending on the frequency of the power applied to it.
The voltage required to produce a current of 50 micro amps with a resistance of 52 Kilo ohms?
V= I x R Therefore; .00005 x 52,000 = 2.6 volts
