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State 3 functions of wheatstone bridge?
Wheatstone bridge is used to calculate the resistance of unknown resistor in the circuit.
What is the meaning of resistor?
Resistors are one of the three basic electronic components. They restrict the flow of current in an electrical circuit. Fixed resistors have a fixed value of resistance, and are used in almost every electronic circuit for lots of different reasons.
Which device could you use in a circuit to limit or reduce the electric current?
A resistor is a device commonly used in a circuit to limit or reduce electric current. By providing resistance, it restricts the flow of current according to Ohm's Law, which states that current is inversely proportional to resistance. Additionally, variable resistors, such as potentiometers, can be used to adjust the level of resistance and, consequently, the current in a circuit.
How is the stepped resistor differ from the fixed resistor?
A stepped resistor, also known as a variable resistor or rheostat, allows for adjustable resistance levels, enabling fine-tuning of current flow in a circuit. In contrast, a fixed resistor has a constant resistance value and does not change. While stepped resistors can be used for applications requiring variable resistance, fixed resistors are typically used in applications where a specific resistance is needed. The ability to adjust resistance in stepped resistors offers greater flexibility in circuit design.
What circuits can be used to measure the resistance of the heating element shown as a resistor in the diagram?
To measure the resistance of a heating element represented as a resistor in a circuit diagram, you can use a simple ohmmeter or a multimeter set to the resistance measurement (ohm) mode. Alternatively, a Wheatstone bridge circuit can be employed for more precise measurements, allowing for comparison against known resistances. Both methods will provide accurate readings of the heating element's resistance when it is disconnected from the power supply.
How will you differ a resistor and resistance?
resistance is the hindrance caused to some flow be it flow of liquids,flow of positive charges etc. whereas resistor is the device used to vary the resistance of the electric circuit
State 3 functions of wheatstone bridge?
Wheatstone bridge is used to calculate the resistance of unknown resistor in the circuit.
What is a device that resists the flow of electricity in a circuit?
A resistor is a device that resists the flow of electricity in a circuit. It is used to control the amount of current flowing through the circuit by providing a specific amount of resistance.
What are devises run by electrical energy represented as resistors in a circuit?
Do not confuse 'resistance' with 'resistor'. 'Resistance' is a quantity, wheras a 'resistor' is a circuit component. In schematic diagrams, the 'rectangular' (European) or 'zig-zag' (US) circuit symbol represents resistance, not a resistor. The circuit symbol, therefore, is used to represent anyresistive device.
What does a thermistor do and how does it function in electronic devices?
A thermistor is a type of resistor that changes its resistance in response to temperature. In electronic devices, thermistors are used to measure and control temperature. They function by converting temperature changes into electrical resistance changes, allowing the device to accurately monitor and adjust temperature levels.
What is Difference between ohmmeter and Wheatstone's bridge?
An ohmmeter is a device used to measure the resistance of a component or circuit by passing a current through it and measuring the voltage drop. In contrast, a Wheatstone's bridge is a circuit used to measure an unknown resistance by balancing it against known resistances in a bridge configuration, without passing a current through the unknown resistor. Wheatstone's bridge is more accurate for precise resistance measurements compared to an ohmmeter.
What is a device that can control the current in a circuit?
A variable resistor can be used to control the current in a circuit by adjusting its resistance. By changing the resistance value, the amount of current flowing through the circuit can be regulated.
What do you call a variable resistor that is set up to alter the size of the current in a circuit?
A thermister is a device that changes resistance depending on temperature. A photo resistor changes resistance based on light. Both of these could be used with an amplifying circuit to vary current flow.
What is resistor used for?
A Resistor Is Used To Limit The Current In A CircuitFurther AnswerA resistor is sometimes used to modify the natural resistance of a circuit -e.g. by adding a resistor in series, you can increase the natural resistance; by adding a resistor in parallel, you can decrease the natural resistance. Two or more resistors can be used to create a voltage divider -a method of obtaining a voltage lower than the supply voltage in a d.c. circuit.Use of resistor is to produce a particular amount of resistance to the flow of current
What does a thermister do and how does it function in a circuit?
A thermistor is a type of resistor that changes its resistance with temperature. In a circuit, a thermistor is used to measure temperature by detecting the change in its resistance. When the temperature changes, the resistance of the thermistor changes, which can be measured and used to determine the temperature in the circuit.
What is a resistor for?
A Resistor Is Used To Limit The Current In A CircuitFurther AnswerA resistor is sometimes used to modify the natural resistance of a circuit -e.g. by adding a resistor in series, you can increase the natural resistance; by adding a resistor in parallel, you can decrease the natural resistance. Two or more resistors can be used to create a voltage divider -a method of obtaining a voltage lower than the supply voltage in a d.c. circuit.Use of resistor is to produce a particular amount of resistance to the flow of current
What is the meaning of resistor?
Resistors are one of the three basic electronic components. They restrict the flow of current in an electrical circuit. Fixed resistors have a fixed value of resistance, and are used in almost every electronic circuit for lots of different reasons.
