How do you find minimum resistance?
Take the nominal value and multiply it by 1 + your tolerance, which is (1+0.1). Then take the nominal value and multiply it by 1 – tolerance, or (1-0.1). The highest possible value is 517 K. The lowest possible value is 423 K.
What is the maximum and minimum resistance?
Maximum and minimum resistance is 9 and 1 ohm respectively. All resistor are of same resistance , R = 3 ohm. We know, equivalent resistance is maximum when all resistance are in series. Therefore, maximum resistance , Also, equivalent resistance is minimum when all resistance are in parallel.
What is maximum resistance?
It is know to us , combining resistances in parallel reduces equivalent resistance and combining resistances in series increases equivalent resistance. To get maximum possible resistance, one has to combine all 5 resistors in series. Rmax=R1+R2+R3+R4+R5 Rmax=R+R+R+R+R=5R. Rmax=5×51=1Ω
What is the minimum resistance which can be made using 4 resistors each of 4 ohm?
Answer. Answer: 5 ohm is the minimum resistance we get.
In which combination the value of current is maximum?
Answer. Answer: In series combination of resistance, resistors aid up and opposes the current. In parallel combination, equivalent resistance will be less therefore current drawn will be maximum.
What is the maximum resistance which can be made using 5 resistors of 1.5 ohm?
Answer. the maximum resistance which can be made using 5 resistors each of 1/5 ohms is 1 ohm.
What is the minimum resistance which can be made using five resistors each of 1/2 ohm?
Minimum resistance is obtained in parallel combination. Thus, Rp=(1/5Ω)5=(1/25)Ω.
What is the maximum resistance which can be made using four resistors each of 1/2 ohm?
Maximum resistance achievable by using the 4 resistors is 2 Ohms. Explanation: Given: There are four resistors of 1/2 Ohm resistance each.
What is the maximum resistance which can be made using five resistors each of 1/2 ohm?
The answer is (d) 1 Ω Maximum resistance is obtained when resistors are connected in series.
How should the four be connected to get the maximum resistance?
Answer. Answer: for finding maximum resistance we always connect the resistors in series. hence the answer is 8 ohm.
Which combination of current is minimum?
Solution : In parallel combination of cells the voltage across the terminals is same and resistance is minimum. Therefore from V=IR. The current drawn from cell combination will be more.
Why the current is maximum in series and minimum in parallel?
Answer: In series combination of resistance, resistors aid up and opposes the current. In parallel combination, equivalent resistance will be less therefore current drawn will be maximum. For maximum current, resistance should be as small as possible that is achieved by parallel combination.
How do you connect two resistance to a cell to get maximum and minimum current?
For minimum current flow: In order to obtain the minimum current flowing through the circuit, the resistors must be connected in series with each other. For maximum current flow: In order to obtain the maximum current flowing through the circuit, the resistors must be connected in parallel with each other.
What happens when two cells are connected in parallel?
When cells are in parallel the total voltage is the same as the voltage of each individual battery. The current also remains the same. However, when connected in this way the cells last longer.
How do you connect two resistance to get maximum current?
To get a maximum current in an external resistance of 8Ω one can use m rows of n cells (connected in series), connected in parallel. If the total number of cells is 64 each having an e.m.f. of 2V and interanl resistance of 2Ω , then calculate the number of cells in each row and number of rows.
Which combination of resistance is more?
The resistance in a series combination circuit is more because the resistors are connected end to end. However, in parallel combination, the resistors are connected individually, which leads to less resistance.
Why is resistance in series higher than parallel?
In a series circuit, the total resistance across all of the components (the ‘net resistance’) increases as more components are added. The two resistors have the same current through them. The potential difference across them will be different if they have different resistances.
Does series or parallel have more resistance?
The parallel circuit has very different characteristics than a series circuit. The total resistance in a parallel circuit is always less than any of the branch resistances. Adding more parallel resistances to the paths causes the total resistance in the circuit to decrease.
How do you add resistance in series and 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.