# physix

posted by .

three resistances of value 1 ohm, 2 ohm and 3 ohm are connected in parallel.If the
effective resistance of the circuit has to be 1 ohm, the value of the resistance to be connected in series to this circuit should be?

• physix -

1/R = 1/1 + 1/2 + 1/3 = 11/6
So, the parallel resistance is 6/11 ohm.

Add 5/11 ohm to make the total 1 ohm.

## Similar Questions

A total resistance of 3 ohms is to be producd by combining an unknown resistor R with a 12 ohm resistor. What is the value of R and how is it connected to the 12 ohm resistor a) 4.0 ohm parallel b) 4.0 ohm in series c) 2.4 ohm in parallel …
2. ### physics

A 16.0 ohm and a 24.0 ohm resistor are connected in parallel. A difference in potential of 32.0 V is applied to the combination. What is the equivalent resistance of the parallel circuit?
3. ### Physics

A 22-ohm resistor and a 33-ohm resistor are connected in series and placed across 120-V potential difference. 1. what is the equivalent resistance of the circuit?
4. ### physics

the table below shows the values of the resistance, capcitive reactance and inductive reactance for five RCL circuits. in which circuit will the voltage lead the current?
5. ### physics

A 18.7 ohm and a 24.3 ohm resistor are connected parallel. A difference in potential of 41.5 V is applied to the combination. What is the equivalent resistance of the parallel circuit?
6. ### physics.

resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
7. ### physics

two unknown resistors a and b are connected together. when they are connected in series their combined resistance is 15 ohm. When they are connected in parallel, their combined resistance is 3.3 ohm. What are the resistances of A and …
8. ### physics

A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance of the circuit?
9. ### physics

A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance of the circuit?
10. ### Chakote school solapur

if three resistors are connected in parallel there are 10 ohm 20 ohm and 60 ohm to a battery of 12 volt then find the effective resistance ?

More Similar Questions