What is the total resistance of a circuit with three 30 ohm resistors in parallel?

So the 3 Resistors each 30 Ohms are connected in parallel. Their Resultant Resistance = 30*30/(30+30 ) =15*30/(15+30)=10 Ohms. Therefore the combined Resistance value is 10 Ohms with an increased power rating.

What is the current in the 30 ohms resistor?

1 Expert Answer So the current in the 30 Ω resistor is 2.00 amps.

What is the equivalent resistance of 10 ohms 30 ohms and 15 ohms resistors all connected in parallel?

Detailed Solution The Correct answer is 5 ohm. For resistances that are connected in parallel, the formula is, Reciprocal of the equivalent resistance = Sum of reciprocal of all the resistances.

How do you work out 3 resistors in parallel?

To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. This is done using the following formula: Rtotal = R1 + R2 +R3 and so on. Example: To calculate the total resistance for these three resistors in series.

What is the total resistance of this circuit?

If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm’s Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.

What is the total current through the circuit?

Since there is only one path for electron flow in a series circuit, the current is the same magnitude at any point in the circuit. The total current in a series circuit is the same as the current through any resistance of the circuit.

How many ohms does a 30 ohm resistor make?

Two 30 ohms in parallel make 15 ohms. Add the third 30 ohms in series to the parallel pair makes 15+30=45 ohms. Two 30 ohms in series makes 60 ohms. Putting the third 30 ohms in parallel with this pair makes 20 ohms. The calculation for resistors in parallel is the reciprocal of the sum of the reciprocals of each resistance.

What is the relationship between ohm’s law and resistance?

Ohm’s Law and Resistance. Ohm’s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and inversely proportional to the resistance of the circuit. The formula for Ohm’s law is V=IR. This relationship between current, voltage,…

How do you find the effective resistance of a 240V circuit?

Three resistances of 40 ohms, 120 ohms, and 60 ohms are connected in parallel. If the total voltage across the circuit is 240 V, what is the effective resistance? Use 1/Rt = 1/40 + 1/120 + 1/60 to solve for total resistance.

What are the applications of Ohm’s law in everyday life?

Applications of Ohm’s Law. Ohm’s law helps us in determining either voltage, current or impedance or resistance of a linear electric circuit when the other two quantities are known to us. It also makes power calculation simpler.