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Ohm's law: Current is voltage divided by resistance.

50 volts divided by 5 ohms = 10 amperes.

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If the voltage applied to a circuit remains constant and the resistance in the circuit is increased the current will?

V = IR Where, V = voltage I = current R = resistance Thus if resistance is increased with constant voltage current will decrease


How the current in a circuit changes if the voltage in the circuit is decreased and the resistance remains the same?

If the ratio of voltage to current is constant, then the circuit is obeying Ohm's Law. If the ratio changes for variations in voltage, then the circuit does not obey Ohm's Law.


When resistance decreases what happens to current?

Based on the simplest Electrical Equation V = I * R,(reads: voltage equals current multiplied by resistance)then, rearranged I = V / R .As resistance decreases, current flow proportionately increases


What happens to the voltage if the current increases?

Yes, if the resistance remains constant. Power is voltage times current, and current is voltage divided by resistance, so power is voltage squared divided by resistance. In essence, the power increases as the square of the voltage.


How does electrical resistance change the current in a circuit?

Electrical resistance is opposition to electric current flow. There is a resistance to the flow of current. And a "balance" between applied voltage and resistance determines how much current will flow in a circuit. For a given applied voltage, if we increase the resistance, the current flow will decrease. For that same applied voltage, if we decrease the resistance, the current flow will increase. It's a simple relationship, and it is set down by the following expression: E = I x R We can also write it as I = E / R and R = E / I Voltage (in volts) is E, current (in amps) is I, and resistance (in ohms) is R. In the first expression, voltage is equal to current times resistance. For a constant voltage, any increase in resistance will cause a decrease in current flow. And any decrease in resistance will cause in increase in current flow. Just as cited earlier.

Related Questions

How are current, voltage, and resistance related in an electrical circuit?

In an electrical circuit, current is directly proportional to voltage and inversely proportional to resistance. This relationship is described by Ohm's Law, which states that current (I) equals voltage (V) divided by resistance (R), or I V/R.


What is the formula for calculating the resistance in an electrical circuit?

The formula for calculating resistance in an electrical circuit is R V/I, where R is the resistance, V is the voltage, and I is the current.


What is the relationship among voltage circuit and resistance in a circuit?

Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)


What is the relationship between current, voltage, and resistance in an electrical circuit?

In an electrical circuit, current is the flow of electric charge, voltage is the force that drives the current, and resistance is the opposition to the flow of current. According to Ohm's Law, the relationship between current (I), voltage (V), and resistance (R) is given by the equation V I R, where voltage equals current multiplied by resistance.


What is the relationship between voltage, current, and resistance in an electrical circuit?

In an electrical circuit, voltage is the force that pushes electric current through a conductor. Current is the flow of electric charge, and resistance is the opposition to the flow of current. According to Ohm's Law, the relationship between voltage (V), current (I), and resistance (R) is given by the equation V I R. This means that the voltage across a circuit is equal to the current flowing through it multiplied by the resistance of the circuit.


What causes a voltage drop in an electrical circuit?

A voltage drop in an electrical circuit is caused by resistance in the circuit components, such as wires, resistors, or other devices. This resistance reduces the flow of current and results in a decrease in voltage across the circuit.


What is the relationship between resistance and voltage in an electrical circuit?

In an electrical circuit, resistance and voltage are directly related. According to Ohm's Law, voltage is equal to the product of resistance and current. This means that as resistance increases, voltage also increases, and vice versa.


What is the relationship between voltage and resistance in an electrical circuit?

In an electrical circuit, the relationship between voltage and resistance is described by Ohm's Law. This law states that the voltage across a circuit is directly proportional to the resistance in the circuit. In other words, as resistance increases, the voltage required to maintain the same current also increases. Conversely, if resistance decreases, the voltage required to maintain the same current decreases.


What is the relationship between current and voltage in an electrical circuit?

The relationship between current and voltage in an electrical circuit is described by Ohm's Law, which states that the current flowing through a circuit is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the circuit. In simpler terms, as the voltage increases, the current flowing through the circuit also increases, assuming the resistance remains constant.


What is the relationship between voltage and current in an electrical circuit?

The relationship between voltage and current in an electrical circuit is described by Ohm's Law, which states that the current flowing through a circuit is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the circuit. This means that as the voltage increases, the current flowing through the circuit also increases, assuming the resistance remains constant.


How does voltage drop work in an electrical circuit?

Voltage drop in an electrical circuit occurs when there is resistance in the circuit, causing a decrease in voltage as the current flows through the components. This drop in voltage is proportional to the amount of resistance in the circuit, following Ohm's Law (V I R).


How do you figure out how much current is in an electrical wire?

If you know the voltage and resistance, then current = voltage divided by resistance. Otherwise, you can attach an ammeter into the circuit (in series).