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You reduce voltage in a DC circuit with a resistor. If the power demands are high, however, you may need a switching voltage regulator.
Lou Altenwerth
Wiki User
∙ 13y agoA: Any serial resistance added in series should reduced. The value is input voltage minus the wanted voltage divided by the current required to run the circuit, or add an LM117 regulator which is better and easier to control.
Wiki User
∙ 12y agosourmath.com can answer your questions on all kinds of amps.
Wiki User
∙ 15y agoby using the chopper circuit.
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Does a resistor only decrease current in a circuit?
A resistor does not only decrease current in a circuit it can also reduce tension(voltage) if connected in series.
The applied voltage in a circuit equals the sum of the circuits individual what?
For a series circuit, the applied voltage equals the sum of the voltage drops
Can there be a different voltage across each component in a circuit?
Yes, if it is a series circuit. In an ideal parallel circuit, there is equal voltage in each leg. In a real circuit, results may vary if there is voltage loss in the wiring.
Summary of the step-down transformer?
A step- down transformer is one whose secondary voltage is less than its primary voltage, it is used to reduce 'step down' the voltage applied to it. The number of coils in the primary circuit is greater that the secondary circuit. For instance, to step down 480 Voltage to 240 voltage, you need a step down transformer whose ratio of primary coils to secondary coils is 2:1.
Is the increase in voltage causes a greater electric resistance in a circuit?
No, the resistance in a circuit does not change when voltage changes. Resistance is an inherent property of the circuit.
What can be used to reduce to current in a circuit?
A: Any resistance added in series will reduce the current unfortunately will also reduce the voltage
What can be used to reduce a current in a circuit?
A: Any resistance added in series will reduce the current unfortunately will also reduce the voltage
What is added to a circuit to make the current smaller?
The reduction of voltage or the increase of resistance will reduce the current in a circuit.
What happens if a circuit has no resistance?
Then the voltage in will equal the voltage out. The purpose of a resistor is to reduce the amount of electrical flow of current. You 'short out' the supply and blow a fuse/circuit breaker.
The amount of current in a circuit can what by increasing the amount of resistance present in the circuit?
No it cant. Voltage = Current x Resistance. So at constant Voltage if the Resistance is increased, Current will reduce
Does a resistor only decrease current in a circuit?
A resistor does not only decrease current in a circuit it can also reduce tension(voltage) if connected in series.
What can be used to reduce the amount of voltage drop across the branches of a parallel circuit to be less than source voltage?
A: BY adding resistance to one or all branches will reduce the voltage drop across any branch. But also the current will be reduced accordingly
Can you use a rectifying diode to reduce voltage in an AC circuit?
No, you must use one of three options depending upon your circuit and what you want to accomplish: 1. Use a transformer (ie; 24 volts into 12 volts). 2. Use a voltage regulator circuit. 3. Use a ZENER diode that is rated for the maximum voltage you desire in your circuit. Example: A 12 volt circuit with a 5 volt zener diode (the diode will only let a maximum 5 volts get through and will disipate the remaining voltage to ground. (requires proper design and resistor selection). ANSWER: YES ABSOLUTELY if there is a full wave rectifier removing one diode will reduce the voltage and reduce power too.
How is voltage spread out in series circuit?
By Kirchhoff's Voltage Law, the sum of the voltage drops around the series circuit will equal the voltage applied to the circuit.
What is Voltage rise?
Voltage Rise : The energy added to a circuit. Voltage drop: The energy removed from the circuit.
How voltage is measured in potential transformer?
By connecting a voltmeter across the secondary terminals of the voltage/potential transformer. The transformer acts to reduce the voltage applied to its primary winding, while electrically-isolating the primary (usually high-voltage) circuit from the voltmeter.
What is the applied voltage to a resistive capacitive circuit?
this is the amount of voltage a circuit can hold.
