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What is the current in a 12volt circuit that has 9 ohms of resistance?
Wiki User
∙ 13y ago
Ohm's Law: Current equals voltage divided by resistance
If the two 3 ohm resistors are in series, then 12 volts divided by 6 ohms is 2 amperes.
If the two 3 ohm resistors are in parallel, then 12 volts divided by 1.5 ohms is 8 amperes.
WARNING: In the first case, this is 24 watts or 12 watts per resistor. In the second case, this is 96 watts or 48 watts per resistor. Exercise great care if you intend to duplicate this in the lab, i.e. do not think for even a split second that a 1/4 watt resistor is going to be able to handle this power without burning up and causing a fire.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoOhm's Law provides the information you need to solve this problem.
Voltage = Current x Resistance or rewritten for your problem it is
Current = Voltage divided by Resistance.
I = 12/13
Which is nearly 1 amp.
Wiki User
∙ 13y agoOhm's Law says Voltage = Current x Resistance
Current = Voltage / Resistance
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What is the resistance of the circuit if the voltage is 230 volts and the current flowing is 5 amps?
The resistance of the circuit will be 46 ohms
A circuit has an applied voltage of 100 volts and a resistance of 1000 ohms What is the current flow in the circuit?
A circuit has an applied voltage of 100 volts and a resistance of 1000 ohms. The current flow in the circuit is 100v/1000ohms which would equal .1.
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Ohm's Law: Current = Voltage divided by resistance 9 volts divided by 3 ohms = 3 amperes.
How do you find resistance when you have current and resistance total?
If you are looking for the resistance of each resistor in either a series circuit or a parallel circuit you must measure the current I and the voltage V for each resistor. Then calculate its resistance using Ohms Law R = V / I where I = current (Amps), V = voltage (Volts) and R= resistance (Ohms).
What is the current in a circuit with 20 volts and 5 ohms resistance?
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What is the resistance of the circuit if the voltage is 230 volts and the current flowing is 5 amps?
The resistance of the circuit will be 46 ohms
A circuit has an applied voltage of 100 volts and a resistance of 1000 ohms What is the current flow in the circuit?
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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).
How many amperes of current will flow in a circuit if the voltage difference is 9 V and the resistance in the circuit is 3 Ω?
Ohm's Law: Current = Voltage divided by resistance 9 volts divided by 3 ohms = 3 amperes.
What is the resistance in this circuit that has a voltage of 21.6 V and a current of 0.9 A?
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How do you find resistance when you have current and resistance total?
If you are looking for the resistance of each resistor in either a series circuit or a parallel circuit you must measure the current I and the voltage V for each resistor. Then calculate its resistance using Ohms Law R = V / I where I = current (Amps), V = voltage (Volts) and R= resistance (Ohms).
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What is the current in a circuit with 20 volts and 5 ohms resistance?
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What is the term for the relationship of voltage current and resistance in simple electrical circuit?
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What voltage is required to sustain a current of 0.50 through a light bulb resistance of 190?
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Assuming DC and resistive loads, resistance equals voltage across the load, divided by the current through it. In this case 120/10 or 12 ohms.
What is the current in a circuit that has a resistance of 30 ohms and a power of 2 watts?
Use the formula: P=IR (power = current x resistance).
