0
it is used for prevention of over flow of current and for maintaining irrespective regulation
AnswerA 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.
Add your answer:
Earn +20 pts
What is the purpose of the subject box in an email?
Always put subject heading so that the person receiving the email can quickly see what the email is about.
How many ohms is a low resistance?
This is relative to the purpose or application. 1 mega ohm may be considered "low resistance" when testing insulation levels; when testing a cable, 1 ohm may be too much. When testing substation ground grids, I believe 1 ohm is the maximum allowable value in some countries.
What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
Which metal has no resistance?
99.99% silver is the best for no resistance.
What is swamping resistance?
(Electronics) Resistor placed in the emitter lead of a transistor circuit to minimize the effects of temperature on the emitter-base junction resistance and its resistance is called swamping resistance.
What is high resistance box?
a box which has resistance between 1 ohm to 50000 ohm
What is the purpose of resistance?
Resistance doesn't have a 'purpose'; it exists whether you want it or not. You can modify it by adding more resistance in series or in parallel, but you can't avoid it!
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.
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 do you use resistance decade box?
we use it when we require a variable resistance in a circuit
Is resistance box connected in series or parallel?
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.
What is the purpose of the lord's resistance army?
the purpose of the LRA is to turn the Uganda into a theocracy
What is the purpose for finding temperature coefficient of resistance?
to investigate change in resistance as temperature is varied
When was The Massive Resistance?
the purpose of it is it integrates schools
How do you calculate resistance box for slip ring motor?
how to calculate resistance box for slipring motors
Why the wires in the resistance box are double folded?
The wires in the resistance box are double folded to reduce their resistance value by a factor of 4, as resistance is inversely proportional to the cross-sectional area of the wire. This allows for more precise resistance increments to be achieved by varying the length of wire exposed in the circuit.
What are the different types of resistance and their purpose?
u & yo mamma
