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ohms law babe voltage,current & resistance
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∙ 12y ago
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What is voltage drop calculation?
There must be current flow through the circuit to measure any voltage
Why must a circuit be closed in order for current to a flow?
A circuit must be closed in order for a current to flow because it helps keep a current flow pass. When the switch is closed on a circuit there is a constant flow. When the switches open the flow is disturbed around the circuit.
In order to flow electricity must follow what?
In order for a current to flow there must be a complete circuit.
In order to have current flow what must a circuit be?
the ciruit must be closed so it can move freely
Is true if there is voltage in circuit there must be electrons flowing through the circuit.?
No. For electrons to flow, you need a current.
When measuring current always place any type of meter in series with the circuit--is this true?
No. While it is true that one can measure current at any point in a circuit by breaking the circuit at that point and inserting the meter, not any meter will do it. One must use an ammeter to measure current.
What must voltage be?
Voltage is a measure of the E.M.F (electromotive force) which drives current around a circuit.
When designing an ammeter you must take into consideration what?
How well it can measure current in an electric circuit and up to how many amps will it need to measure.
How is current measured in a series circuit?
Current is measured in a series circuit by the use of a multimeter. First, the power source must be attached to the circuit board. The board is attached to the multimeter, then that is attached back to the power source.AnswerCurrent is measured either with an ammeter, or with a multimeter set to measure current. The instrument must be connected in series with the other components in the circuit.
How is an ammeter connected in a circuit?
Series connect it within the line of the circuit for which you are interested in measuring the current flow.More detailSince we measure the flow of current IN the circuit, the ammeter must be connected in series with the part of the circuit for which you are interested in measuring the current flow.One of the ammeter's terminals must be connected to a point of the incoming current flow and its second terminal must be connected to the point of on-going current flow. To do this, cut the relevant circuit wire and connect one terminal of the ammeter to each end of the cut.
Why meter ampere was connected in series and voltmeter was connected in parallel in a circuit?
An ammeter is used to measure the current through a circuit and thus it must be in series with that load. Also, it's resistance is so low that it cannot be connected in parallel since it will result in a short circuit. A Voltmeter is intended to measure the voltage across a circuit and thus it must be connected in parallel. It has a very high resistance such that connecting it in series with a circuit will lender the circuit useless or inoperative.
What is voltage drop calculation?
There must be current flow through the circuit to measure any voltage
Why must a circuit be closed in order for a current to flow?
A circuit must be closed in order for a current to flow because it helps keep a current flow pass. When the switch is closed on a circuit there is a constant flow. When the switches open the flow is disturbed around the circuit.
The current in a wire is determined by what?
an ammeter can be used to measure current flow, either direct insertion type, where the circuit must be opened and the meter is inserted in series with the load, or a clamp on type.
A circuit must be physically interrupted to measure?
This is a tough question to answer because you've forgotten to include WHAT electrical property you're trying to measure. If you are trying to measure current through a closed, complete circuit with a multimeter, then yes. You must physically disconnect the circuit at the point you wish to measure, and then re-complete the circuit by connecting the leads of your multimeter to the points you just disconnected. (Please be sure the circuit is not energized before you disconnect the circuit!) If you are trying to measure a voltage difference, then no. Just place the leads of your multimeter on the two points you wish to measure the voltage between. As always when dealing with electricity, its safety first. Please do everything you can to protect yourself from electrical shock, especially if you're dealing with 120V/240V line voltages in a house.
Why must a circuit be closed in order for current to a flow?
A circuit must be closed in order for a current to flow because it helps keep a current flow pass. When the switch is closed on a circuit there is a constant flow. When the switches open the flow is disturbed around the circuit.
How do you measure current - both magnitude and phase in ac circuit with reactive elements?
This is most easily done using an oscilloscope with a current probe. Also phase angle must be measured relative to something else, usually the AC voltage at one end or the other of the branch of the circuit where the current is being measured.
