# Series and Parallel Combination of Resistors

## Trending Questions

**Q.**Five equal resistances each of resistance R are connected as shown in the figure. A battery of 4 volts is connected between A and B. The current flowing in AFCEB will be

- 3R
- 1R
- 1R
- 2R

**Q.**The current I in the circuit shown in figure is

- 145 A
- 115 A
- 110 A
- 15 A

**Q.**For the network shown in the figure, the value of the current i is

- 5V9
- 18V5
- 9V35
- 5V18

**Q.**What is the equivalent resistance of the network shown in figure? The numbers indicate resistance in ohms

- 8 ohm
- 163 ohm
- 4 ohm
- 165 ohm

**Q.**Find the equivalent resistance between points A and B of the following network shown in the given diagram?

- 6Ω
- 8Ω
- 4Ω
- 10Ω

**Q.**A wire has resistance 12Ω. It is bent in the form of a circle. The effective resistance between the two points on any diameter is equal to

- 12Ω
- 6Ω
- 3Ω
- 24Ω

**Q.**Find out the value of resistance R in figure.

- 100 Ω
- 500 Ω
- 150 Ω
- 200 Ω

**Q.**Heat flows through a composite slab, across a temperature difference ΔT as shown below. The depth of the slab is 1 m. The conductivity (K) values are in W/mK. The overall thermal resistance in K/W is

(rounded to the nearest integer)

**Q.**Each branch in the following circuit has a resistance R. The equivalent resistance of the circuit between two points A and B

- R
- 2R
- 4R
- 8R

**Q.**Find the current flowing through the resistance R1 of the circuit shown in figure, if the resistances are equal to R1=10 Ω, R2=10 Ω and R3=10 Ω, and the potential of points 1, 2 and 3 are equal to V1=10 V, V2=6 V and V3=5 V.

- 0.2 A
- 0.3 A
- 0.4 A
- 0.1 A

**Q.**Seven resistances are connected as shown in figure. The equivalent resistance between A and B is

- 3Ω
- 4Ω
- 4.5Ω
- 5Ω

**Q.**Two resistors of resistance R1and R2having R1> R2 are connected in parallel. For equivalent resistance R, the correct statement is

- R> R1 +R2
- R1 < R< R2
- R2 < R< (R1+R2)
- R < R1

**Q.**The rms value of an alternating current, which when passed through a resistor produces heat three times of that produced by a direct current of 2 A in the same resistor, is (1) 6 A (2) 3 A (3) 2 A (4) 2 root3 A

**Q.**In the diagram, resistance between any two junctions is R. Equivalent resistance across terminals A and B is

- 11R7
- 18R11
- 7R11
- 11R18

**Q.**The current i in the circuit will be

- 145 ampere
- 115 ampere
- 110 ampere
- 15 ampere

**Q.**In a meter bridge, the balancing length from left is found to be 20 cm when standard resistance of 1 Ω is in right gap. The value of unknown resistance is

- 0.25 Ω
- 0.4 Ω
- 0.5 Ω
- 4 Ω

**Q.**In the circuit, the potential difference across PQ will be nearest to

- 9.6 V
- 6.6 V
- 4.8 V
- 3.2 V

**Q.**If a cell of internal resistance 1.5 Ω and emf of 1.5 V balances 500 cm on a potentiometer wire, now by what length would the balance point shift if a cell of internal resistance 2 Ω and emf of 2 V is connected in parallel (along the same polarity) with the prior cell?

- 71.4 cm towards left
- 71.4 cm towards right
- 125 cm towards right
- Does not shift

**Q.**A cell of emf ε & and internal resistance r is connected across circuit as given in figure. For what value of R heat generated in outer circuit is maximum, ε=10 V & r=103Ω

- R=5 Ω
- R=3 Ω
- R=10 Ω
- Heat generated is independent of R

**Q.**Find out the value of resistance R in figure.

- 100 Ω
- 150 Ω
- 500 Ω
- 200 Ω

**Q.**Given three resistors of 2Ω, 4Ω and 6Ω, what will be the minimum equivalent resistance one can obtain through their various arrangements?

- 1211Ω
- 1112Ω
- 1316Ω
- 1Ω

**Q.**The resistance per unit length of a wire is 10−6 Ω/m. It is bent in the form of a circle of diameter 2 m. A wire of same material and cross sectional area is connected across its diameter. The total resistance across its diameter AB will be

- 43π×10−6Ω
- 23π×10−6Ω
- 0.88×10−6Ω
- 14×10−6Ω

**Q.**A wire has linear resistance ρ (in Ω/m). Find the resistance R between points A and B if the side of the larger square is ′d′.

- ρd/√2
- √2ρd
- 2ρd
- None of these

**Q.**A galvanometer of resistance 20 Ω is to be converted into an ammeter of range 1A. If a current of 1 mA produces full-scale deflection, the shunt required for the purpose is

- 0.01 Ω
- 0.05 Ω
- 0.02 Ω
- 0.04 Ω

**Q.**A uniform wire of resistance 4 ohm is bent into the form of a circle of radius r. A specimen of the same wire is connected along the diameter of the circle. What is the equivalent resistance across the ends of this wire?

- 44+π ohm
- 33+π ohm
- 22+π ohm
- 11+π ohm

**Q.**A galvanometer of resistance 20 Ω is to be converted into an ammeter of range 1A. If a current of 1 mA produces full-scale deflection, the shunt required for the purpose is

- 0.01 Ω
- 0.05 Ω
- 0.02 Ω
- 0.04 Ω

**Q.**

Twelve identical resistance are arranged to form a cubical structure find the effective resistance between .

1 and 8

- R6
- 5R6
- 6R5
- 5R

**Q.**Calculate equivalent resistance between X and Y. Each resistance is 1 Ω.

- 1118 Ω
- 78 Ω
- 2 Ω
- 4 Ω

**Q.**A wire of resistance 0.5Ωm−1 is bent into a circle of radius 1 m. An identical wire is connected across a diameter AB as shown in fig. The equivalent resistance is

- π ohm
- π(π+2) ohm
- π(π+4) ohm
- (π+1) ohm

**Q.**Find the current flowing through the resistance R1 of the circuit shown in figure, if the resistances are equal to R1=10 Ω, R2=10 Ω and R3=10 Ω, and the potential of points 1, 2 and 3 are equal to V1=10 V, V2=6 V and V3=5 V.

- 0.3 A
- 0.4 A
- 0.2 A
- 0.1 A