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In a DC circuit is there an alternate to rheostat for controlling the battery voltage?
Wiki User
∙ 14y ago
In a DC circuit, one alternate to the rheostat for controlling battery voltage is a voltage regulator. You could build a linear regulator, but you need to consider the power that might be dissipated - this would be the same amount of power dissipated by the rheostat. You could also build a switching regulator - this would be more complex, but it could be more efficient because the dissipation across the regulator would be less.
Wiki User
∙ 14y ago
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When to use a rheostat?
Depending on the situation. The purpose of the rheostat is use to change the resistance of the circuit. The rheostat is use to define Ohm Laws the 2nd situation is use to find out what the fixed resistor's resistance. 3rd purpose : used to control the resistance of circuit. eg Radio
What jobs dose a battery do in the circuit?
The purpose of the battery in a circuit is to wive energy to the circuit
What would the current flow be if a short circuit is put across the battery's terminals?
That will depend on the internal resistance of the battery. I = E / R Where I is the current, E is the open circuit battery voltage, and R is the internal resistance of the battery.
If you have a circuit with one battery What happens to the voltage and amperage when you add another battery plus side to minus side to the circuit?
read the boring science book
If you start at the negative end of the battery what will happen to the electrons when a closed circuit turn on a light?
When you start at the negative end of the battery, you start to lose electrons and the circuit is closed.
How a rheostat is used is as a potential divider?
_____________ J| -_____/\/\/\/\_________+ | | | - + | |___i|i|___| E Well this is the circuit diagram , where r is the sliding jockey of the rheostat and a cell (E) is connected in parallel with the rheostat. By adjusting the jockey resistance of the rheostat can be altered which in turn would regulate the potential offered by the cell E to the main circuit. And thus a rheostat can be used as a potential divider.
How is a rheostat use as a potential divider?
_____________ J| -_____/\/\/\/\_________+ | | | - + | |___i|i|___| E Well this is the circuit diagram , where r is the sliding jockey of the rheostat and a cell (E) is connected in parallel with the rheostat. By adjusting the jockey resistance of the rheostat can be altered which in turn would regulate the potential offered by the cell E to the main circuit. And thus a rheostat can be used as a potential divider.
What is role rheostat?
it is a device which is used to change the resistance of circuit.
What is the purpose of a rheostat in the determination of an unknown resistor?
In a bridge circuit the unknown resistor is compared to the rheostat. When the meter across the bridge reads in the middle the unknown and the rheostat are the same value.
When to use a rheostat?
Depending on the situation. The purpose of the rheostat is use to change the resistance of the circuit. The rheostat is use to define Ohm Laws the 2nd situation is use to find out what the fixed resistor's resistance. 3rd purpose : used to control the resistance of circuit. eg Radio
How do you change the speed of a motor in a circuit?
By varying the Resistance to the motor. These Devices are called RHEOSTAT'S
Is noise is a alternate current or direct current in a circuit?
alternate current
What is the purpose of the battery in the circuit?
The purpose of the battery in a circuit is to wive energy to the circuit
What jobs dose a battery do in the circuit?
The purpose of the battery in a circuit is to wive energy to the circuit
The instrument used to increase or decrease the passage of electric current through a circuit is called?
try RHEOSTAT
Circuit diagram of automation of railway controlling and signaling?
I dont know the circuit diagram of automation of railway controlling and signalling please reply the answer as soon as you possible
If you have a circuit consisting of a battery and a wire What two factors determine the amount of current in the circuit?
The voltage of the battery, and the resistance of the circuit (including the resistance of the wire and the internal resistance of the battery).
