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Using Ohm's law V:IR .I:V/R..I:100/5-20...I-20ampere

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16y ago

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How much resistance is in the circuit if it uses a current of 10ma?

Just use Ohms Law: V=IR, that is, voltage (in Volt) = current (in Ampere) x resistance (in Ohms).


What is the total resistance of a parallel circuit with branch voltages of 440 volt and 440 volt and branch currents of 4 amp and 16 amp?

resistance = volt / current . 440 volt across a parallel circuit means the same 440 volt across both resistance s. hence resistance r = volt / current . 440 / 20 amp = 27.5 ohms total resistance


When a 12 volt battery is connected across an unkown resistance there is a current of 2.5m amphere in the circuit find the value of resistance of the resistor?

4.8 ohms


What does ohm sign symbolize?

The ohm is the unit of electrical resistance to current flow. More ohms (more resistance), the less current will flow. Less ohms (less resistance), the more current will flow. One ohm is defined as the amount of resistance that will cause one ampere of current to flow if the supply voltage is one volt. Ohm's law states that amps = volts / ohms So, if you had a 12 volt battery, and you connected a load, say a heating element that had a resistance of 3 ohms, how much current would flow in the circuit? amps = 12 volts / 3 ohms amps = 4


What is the current when a 12 volt battery is connected through a resistance of 25 ohms?

The current flowing through the circuit can be calculated using Ohm's Law: I = V/R, where I is the current, V is the voltage (12 volts), and R is the resistance (25 ohms). Plugging in the values, the current would be 0.48 amperes.


How long does current remain in a 220 volt circuit?

The current in a 220 volt circuit depends on the resistance of the load connected to it. Ohm's Law (I = V/R) states that current (I) is equal to voltage (V) divided by resistance (R). So, the current will vary based on the resistance of the circuit.


How much current and circuit that includes a 9- volt battery and a bulb with a resistance of 3 ohms?

A resistance of 3 ohms connected between the terminals of a 9-volt battery will result in a current of 3 Amperes. If the battery is one of those little ones with snaps on top, it may be able to produce 3 amperes of current for about 3 seconds before it rolls over and totally dies.


How much curretn is in a circuit that includes a 9- volt battery and bulb with a resistance of 12 ohms?

Current, I is equal to V (voltage) divided by R (resistance); Hence: I=V/R = 9V/200 ohms: I = 0.045 Amps, or 45ma (milliamps).


What is the resistance of 150-volt lamp with a current of 2amps?

75 ohms. R = E/I.


How much current is in a circuit that includes a 9 volt battery and a bulb with a resistance of 12 ohms?

The current depends on the total effecvtive resistance of everything connectedacross the battery.If the bulb is the only component there, then the current is E/R = 9/12 = 0.75 amperes.


A 480-volt circuit has an impedace of 60 ohms what is the current?

480 volts and 60ohm impedence current = volt/impedence current=480/60 current=8ampeares


How much current is in a circuit that includes a 9-volt battery and a bulb with a resistance of 12 ohms?

Current = voltage/resistance If those are the only components in the circuit, then Current = 9/12 = 0.75 Ampere = 750 mA