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How will current and potential difference be affected as more loads are added in series circuits?
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Does potential difference change with change in resistance?
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.
How can you determine the resistance of a current?
Voltage = Current x Resistance giving us Current = Voltage / Resistance i.e. Voltage divided by resistance
What is the difference between potential difference and current?
think of potential as pressure and current as flow. you can have pressure in a water hose with out flow. open the valve and current happens. The difference in potential divided by the impedance is equal the current.
What is produced first current or voltage?
current flows as a result of potential difference i.e. in a circuit if there is no voltage difference between two points, no current can flow between those two points. So voltage has to be produced first.
Difference between potential transformer and current trasnformer?
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
What are differences between series and parallel circuits?
In series circuits current will be the same through out the circuit. So whereever we connect the ammeter the same current is registered. But in parallel circuit current will be different in different lines. In parallel circuits the potential difference will be the same but in series pd will be different.
Where you use resistors?
In electrical and electronic circuits for: limiting current, developing a potential difference, biassing, controlling gain, and many more
Is current produced with out potential difference?
No.
Current is proportional to the potential difference and inversely proportional to its?
Current is proportional to the potential difference and inversely proportional to resistance. Ohm's law: Current equals voltage divided by resistance
The difference between charge and current?
Charge is potential, current is flowing.
Why potential difference is necessary for the flow of current?
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How does voltage produce current?
Voltage across two terminals mean there exists a potential difference, and when the circuit gets closed, due to this potential difference the current flow.
What is the potential difference across a 1500 ohm resistor carrying a current of 0.075 A?
Potential Difference across a resistor is given by, Potential Difference = Resistance * Current = 1500 * 0.075 = 112.5 Volts
What are the quantities involved in Ohm's law?
-- Voltage between two points-- Resistance of the conducting path between the same two points-- Current that flows between the two pointsAnswerThere are two quantities involved with Ohm's Law: potential difference and current. For a circuit to obey Ohm's Law, the ratio of potential difference must be constant. Not many circuits obey Ohm's Law. Those that do, are called 'linear' or 'ohmic' circuits; those that don't are termed 'non-linear' or 'non-ohmic'.
If the potential difference between two points increases what will the current do?
If the potential increase and resitance remain the same ,the current will encrease
Is reactance a scalar or a vector quantity?
In DC(direct current) circuits, voltage is scalar. But in the case of alternating-current(AC) voltage is vector quantity. It is because in an AC circuit the current is changing the direction for every time period. Therefore, since in this the direction matters its a vector quantity. Regards.
What is the potential difference across a resistor that dissipates 24 W of power and has a current of 3 A?
Work it out yourself. PD=P/I, Where PD=Potential Difference, P=Power & I=Current
