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In a circuit if the switch is closed how many volts go across the switch?
Wiki User
∙ 14y ago
For an ideal switch, there will be no voltage drop across it. In reality, there will be a very small voltage drop, and this will be dependent on how well made the switch is, and what it is made out of.
Wiki User
∙ 14y ago
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What is the voltage of a series circuit with four voltage drops of 30 volts?
there is 120V across the circuit.
If 120V is present on a120V relay coil what will the voltage reading be across the closed set of relay contacts on a 120V circuit?
0v The relay is designed to act as a switch when voltage is applied across the coil. The contacts open or close but only pass through whatever is connected to those terminals. <<>> When a relay coil is energized the relay's contact change status. The closed set of contacts will open. The 120 volt circuit that is connected will turn off. As to the voltage at the contact terminals, it depends on where you are taking the voltage reading from and to. On the source side of the terminal there will be a reading of 120 volts to neutral or ground. On the other side of the contact terminal there will be zero volts to the neutral or ground. This is because that wire is in series with the load to neutral. A meter reading across the relay terminals will read 120 volts.
When measuring voltage drop across a switch what is the maximum allowable voltage drop?
The voltage drop should be as close to zero as would be readable by a typical volt meter. If it is measurable you likely have a problem with corrosion or oxidation in switch that is increasing resistance. If you can measure a voltage drop across a closed switch contact, replace the switch. Or the switch is open, try flipping the switch!
Using ohm's law what is the formula to find the resistance in a circuit?
Resistance of the circuit = (voltage across the circuit) divided by (current through the circuit)
Is voltage measured in series?
ANSWER:Imagine that all the elements of a simple circuit (such as a battery, a light globe , a switch, and a resistor ) When the switch is closed , the electric current flows round and round the circuit just the same way as water would flow through these elements if the circuit had a Water pressure supply and a thin section of pipe and then a thick section of pipe etc . The FLOW of the electricity in Amps can be thought of as the same thing as the Flow rate of water in a pipe system. The Ammeter, is put into the circuit between any 2elements of the circuit, so that the current flows through it , as well as all the other elements (parts) of the circuit. When current flows through the various elements the flow rate (Current) is the same in all of them. As the current flows through, there is a drop of pressure (Voltage) as the electrons flow through each of the elements of the circuit. The actual pressure(volts) in each piece of the circuit , can be measured, by placing a Voltmeter across any individual item in the circuit. The drop in pressure at each item is measured by connecting each terminal of a Voltmeter across the item you are dealing with. The voltage across the 2terminals of the supply will be perhaps 12 Volt(a car battery) The volts ' pressure ' across the globe may be say 8 volt and the volts across the switch may be 3volts and the volts across the resistor may be only 1 volt. Always think of Ampere, as 'Flow Rate', and think of Voltage as ' Electric Pressure' If a circuit has a spot where it splits into 2 separate circuits , and then turns back into 1 piece of circuit, the current flowing as it goes into the 2 different passages, is split up, or shared between the 2 passages, and then the 2 separate currents join together again as they re-enter the single part of the circuit. To find out the current flow in each of the 2 parallel parts of the circuit you must place the Ammeter in series within each of the 2peices of circuit . The 2 separate curent readings will have a total equal to the current reading in the main single passage circuit.
What is the voltage of a series circuit with four voltage drops of 30 volts?
there is 120V across the circuit.
If three lamps are connected in series to a 6 volt battery how many volts are impressed across each lamp?
In a parallel circuit, Voltage is constant through out the circuit. Thus, the voltage across each lamp is 6-volts.
What is the voltage drop of a series circuit with four voltage drops of 30 volts?
there is 120V across the circuit.
Four 9-volts batteries are connected in parallel how much voltage is active across the circuit?
36 volts
If 120V is present on a120V relay coil what will the voltage reading be across the closed set of relay contacts on a 120V circuit?
0v The relay is designed to act as a switch when voltage is applied across the coil. The contacts open or close but only pass through whatever is connected to those terminals. <<>> When a relay coil is energized the relay's contact change status. The closed set of contacts will open. The 120 volt circuit that is connected will turn off. As to the voltage at the contact terminals, it depends on where you are taking the voltage reading from and to. On the source side of the terminal there will be a reading of 120 volts to neutral or ground. On the other side of the contact terminal there will be zero volts to the neutral or ground. This is because that wire is in series with the load to neutral. A meter reading across the relay terminals will read 120 volts.
When measuring voltage drop across a switch what is the maximum allowable voltage drop?
The voltage drop should be as close to zero as would be readable by a typical volt meter. If it is measurable you likely have a problem with corrosion or oxidation in switch that is increasing resistance. If you can measure a voltage drop across a closed switch contact, replace the switch. Or the switch is open, try flipping the switch!
Four9 V batteries are connected in parallel how much voltage is active across the circuit?
9 volts.
In a circuit of two lamps in parallel if there is a voltage of 6 V across one lamp what is the voltage across the other lamp?
6 Volts.
Using ohm's law what is the formula to find the resistance in a circuit?
Resistance of the circuit = (voltage across the circuit) divided by (current through the circuit)
Is voltage measured in series?
ANSWER:Imagine that all the elements of a simple circuit (such as a battery, a light globe , a switch, and a resistor ) When the switch is closed , the electric current flows round and round the circuit just the same way as water would flow through these elements if the circuit had a Water pressure supply and a thin section of pipe and then a thick section of pipe etc . The FLOW of the electricity in Amps can be thought of as the same thing as the Flow rate of water in a pipe system. The Ammeter, is put into the circuit between any 2elements of the circuit, so that the current flows through it , as well as all the other elements (parts) of the circuit. When current flows through the various elements the flow rate (Current) is the same in all of them. As the current flows through, there is a drop of pressure (Voltage) as the electrons flow through each of the elements of the circuit. The actual pressure(volts) in each piece of the circuit , can be measured, by placing a Voltmeter across any individual item in the circuit. The drop in pressure at each item is measured by connecting each terminal of a Voltmeter across the item you are dealing with. The voltage across the 2terminals of the supply will be perhaps 12 Volt(a car battery) The volts ' pressure ' across the globe may be say 8 volt and the volts across the switch may be 3volts and the volts across the resistor may be only 1 volt. Always think of Ampere, as 'Flow Rate', and think of Voltage as ' Electric Pressure' If a circuit has a spot where it splits into 2 separate circuits , and then turns back into 1 piece of circuit, the current flowing as it goes into the 2 different passages, is split up, or shared between the 2 passages, and then the 2 separate currents join together again as they re-enter the single part of the circuit. To find out the current flow in each of the 2 parallel parts of the circuit you must place the Ammeter in series within each of the 2peices of circuit . The 2 separate curent readings will have a total equal to the current reading in the main single passage circuit.
Four 9-volt batteries are connected in parallel. how much voltage is active across the circuit?
36 volts
Difference between a balanced and unbalanced bridge circuit?
A balanced bridge has zero volts across the two test nodes, while an unbalanced bridge has non zero volts.
