Asked in Electrical Engineering
How do you calculate resistance box for slip ring motor?
To calculate the resistance for a slip ring motor, there is an equation that must be solved. This is Torque = S/R. S is the slip of the motor and R is the resistance of the motor. ...
Asked in Electronics Engineering, Physics, How To
How to calculate the heat produced in a resistor?
V = voltage across the resistance (Volts) I = current through the resistance (Amps) R = resistance of the resistance (Ohms). I = V / R. Power dissipated (heat produced) by the resistance = I2R = V2/R ...
Asked in Physics, Electrical Engineering
How do you calculate resistance in parallel circuits?
1/R= 1/R+1/R+1/R.... The first R is total resistance and the other R's are the resistances of the individual resistors ...
How do you calculate the current in a circuit?
we can calculate the current in a commmon electrical circuit by this formulae i.e,I=V\R where i is the current flowing in the conductor, R is resistance , V is the voltage.. THE FORMULA IS CORRECT but the term conductor does not suffice an explanation since a conductor is low in resistance R= resistance not conduction. ...
Asked in Science
How do you mesure resistance in a wire?
The unit of resistance is the Ohm, and by applying a small voltage to your wire, and measuring the resultant current, you may calculate the resistance.From the formula I = E/R, where R = resistance in Ohms, E is the voltage in volts, and I is the current in amperes....
Asked in Science
Calculate the resistance in a circuit in which a 9 volt batteriyproduces 3 ampheres?
V=IR so, R=V/I or resistance = Voltage / Amps Therefore, the resistance (R) = 9 volts / 3 Amps answer: 3 Ohms ...
How do you Calculate the voltage of a battery if the resistance is 20hms and the current is 0.35 amperes?
Use Ohm's law. V = I * R where V is voltage in volts, I is current in amperes, and R is resistance in ohms. ...
Asked in Beauty, Electronics Engineering, DIY Projects
How do you calculate resistance of a wire?
You have to use the v=i * r or I = v/r or r= v/i when v stands for voltage, i stands for current and r stands for resistance. To get the total resistance, add up all the resistance of each load. you must use a wire table wire comes solid with strands for the same Lents two solutions. ...
How do you calculate the resistance in a circuit in which a 9-volt battery produces 3 amperes?
Where V=stands for voltage, I=stands for current and R=stands for resistance. voltage=current multiplied by resistance so, by transposition, resistance=voltage divided by current. or R=V/I, R=9/3 The resistance is 3 ohms. as by ohm's law, v=ir r = v/i therefore the resistance is 9/3=3 ohms ...
How can calculate resistance for negative dc voltage?
Resistance calculations are the same no matter what the polarity of applied voltage. R=E/I Resistance (in ohms) = Voltage (in volts) divided by Current (in amperes) ...
How to calculate resistance of circuit where one resistor is connected in series with other two resistors in parallel?
In this case, to get the equivalent resistance, first you use the parallel formula (1/R = 1/R1 + 1/R2) to calculate the equivalent resistors in parallel. Then you calculate the series resistance of this combination, with the other resistor. ...
Asked in Physics, Electrical Wiring
How do you find resistance when you have current and resistance total?
If you are looking for the resistance of each resistor in either a series circuit or a parallel circuit you must measure the current I and the voltage V for each resistor. Then calculate its resistance using Ohms Law R = V / I where I = current (Amps), V = voltage (Volts) and R= resistance (Ohms). ...
How many ohms is the resistance of the bulb?
A lamp has two resistances: a 'hot' resistance (its operating resistance) and its 'cold' resistance (its resistance when switched off), and the hot resistance is significantly higher than its cold resistance. You can calculate its 'hot' resistance from its rated power and its rated voltage (assuming that it is being supplied at its rated voltage), by manipulating the following equation, to make R the subject: P= V2/R You will, though, have to measure its cold resistance. ...
How does a Digital Multi-Meter or DMM measure resistance?
A DMM measures resistance by passing a known current through the object you are measuring and reads the voltage. You can then calculate the resistance using the equation V=I*R. R=V/I So for 1mA and a return voltage of 1V the resistance must = 1 KOhm. R= 1/0.001 = 1000 Ohm ...
How do you calculate the amps in a circuit knowing the voltage and ohms?
The equation that you are looking for is I = E/R. Amps = Volts/Resistance. ...
Calculate the resistance of a 45 W light bulb that has a current of 0.38 A?
The formula you are looking for is R = W/I x I.
What is a Parallel Resistance?
Parallel resistance refers to 2 or more resistors where the input sides are connected together and the output sides are connected together. The formula to calculate it is the inverse of the total resistance of the circuit is equal to the sum of the inverses of the individual resistances. 1/R (total) = 1/R (1) + 1/R (2) + 1/R (3) + … ...
How do you calculate current in a series circuit?
voltage over resistance/impredance. V / I * R V= Voltage I= Current R= Resistance or Impedance Cover what you want to know and the way the other two are laid out gives you your equation. ...