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It depends on what you want to accomplish. If you want to decrease the resistance in a circuit, you would place the box in parallel to some other resistor. If you want to increase the resistance in a circuit, you would place the box in series.

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13y ago

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Three resistors having a value of 10 omes each are connected in series to a 300 volts power source what is the total resistance of this circit?

Three resistors having a value of 10 ohms each, when connected in series, have a total effective value of 30 ohms, even if they're wrapped in tissue, stuffed into a box, and stored in the back of your sock drawer. What, if anything, they're connected to makes no difference. If you take the series string of three resistors out of the box and connect it to the terminals of a 300-volts power source, then the string will conduct a current of 10 Amperes. Each resistor will dissipate 1,000 watts and heat rapidly, until the first one either melts or explodes, whereupon the series circuit will open and the flow of current will cease.


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rotor contactor are used to cut the resistance in slip-ring motor connected through resistance box. resistance is proportional to torque. so by controlling rotor contactor resistance can be controlled and hence torque can be controlled. for more information check torque and speed characteristic of wound motor.


What is the difference between resistance box rheostat and resistor?

A resistance box is a device that contains a set of fixed resistors that can be connected in various combinations to achieve different resistance values. A rheostat is a variable resistor that can be adjusted to change the resistance in a circuit. A resistor is a general term for a component that resists the flow of electrical current in a circuit and comes in fixed resistance values.


What is the of resistance box?

it is used for prevention of over flow of current and for maintaining irrespective regulationAnswerA resistance box is a piece of laboratory equipment consisting of an electrically-insulated box, containing a number of resistors which can be connected, externally, via a pair of terminals. The resistance can be adjusted in fixed amounts by inserting or removing metal pegs into a slotted bar; this arrangement either adds or removes the fixed resistors into the circuit.


What is the purpose of resistance box?

it is used for prevention of over flow of current and for maintaining irrespective regulationAnswerA resistance box is a piece of laboratory equipment consisting of an electrically-insulated box, containing a number of resistors which can be connected, externally, via a pair of terminals. The resistance can be adjusted in fixed amounts by inserting or removing metal pegs into a slotted bar; this arrangement either adds or removes the fixed resistors into the circuit.


What is high resistance box?

a box which has resistance between 1 ohm to 50000 ohm


What is a circuit breaker connected in?

it is connected in a box


How many parallel sides does a cereal box have?

It has three parallel sides. ;)


What is the use of resistance box?

The use of a resistance box or a "Decade Box" is to help calibrate instruments used to measure electrical values such as Voltage, Current, and Resistance. Without them you would not have a known value of resistance to use as a set point.


Three 15 ohm resistors are connected in parallel to a 30 volt battery What is the equivalent resistance through the circuit?

You don't need the voltage to calculate that. Just use the product-over-sum formula (for two resistors): R = (R1 x R2)/(R1 + R2) Where R is the equivalent resistance, and R1 and R2 are the individual resistances.


What is a resistance decade box?

Resistance decade box is nothing but Resistance bank. It has various ranges of Resistance value ranging from few ohms to few mega ohms. In other terms, large value of resistance are fabricated in single box is said to be Resistance decade box.


How many parallel faces does a tissue box have?

A standard tissue box typically has three pairs of parallel faces. The top and bottom faces are parallel to each other, while the four side faces also form two pairs of parallel faces. Thus, in total, there are six parallel faces on a standard tissue box.