For the circuit shown in the diagram below:

What is the value of :
Current through $6 Ω$ resistor?
Potential difference across $12 Ω$ resistor?
Download our app for free and get startedPlay store
As per the circuit
$V = 4V$
Total resistance in line $1 = R_1 = 6 + 3 = 3$ ohm
Total resistance in line $2 = R_2 = 12 + 3 = 15$ ohm
Current through $6\Omega$ resistor = current through line $1=\frac{\text{=V}}{\text{R}_1}=\frac{4}{9}=0.44\Omega$
p.d. across line $2$ is $4V$
current through line $2=\frac{\text{V}}{\text{R}_2}=\frac{4}{15}\Omega$
p.d. across $12\Omega$ resistor $=\frac{4}{15}\times12=3.2\text{V}$
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    In which of the following cases more electrical energy is consumed per hour?
    1. A current of $1$ ampere passed through a resistance of $300$ ohms.
    2. A current of $2$ amperes passed through a resistance of $100$ ohms.
    View Solution
  • 2
    The electrical resistivities of five substances A, B, C, D and E are given below:
    $\begin{matrix}\text{B}&110\times10^{-8}\Omega\text{ m}\\\text{C}&2.60\times10^{-8}\Omega\text{ m}\\\text{D}&10.0\times10^{-8}\Omega\text{ m}\\\text{E}&1.70\times10^{-8}\Omega\text{ m}\end{matrix}$
    View Solution
  • 3
    In 10s, a charge of 25C leaves a battery, and 200j of energy are delivered to an outside circuit as a result.
    1. What is the p.d. across the battery?
    2. What current flows from the battery?
    View Solution
  • 4
    Calculate the area of cross-section of a wire if its length is 1.0m, its resistance is $23 Ω$ and the resistivity of the material of the wire is $1.84\times10 Ω\ \text{m}.$
    View Solution
  • 5
    The electrical resistivities of four materials P, Q, R and S are given below:
    $\begin{matrix}\text{P}&6.84\times10^{-8}\Omega\text{m}\\\text{Q}&1.70\times10^{-8}\Omega\text{m}\\\text{R}&1.0\times10^{15}\Omega\text{m}\\\text{S}&11.0\times10^{-7}\Omega\text{m}\end{matrix}$
    Which material will you use for making:
    1. Heating element of electric iron.
    2. Connecting wires of electric iron.
    3. Covering of connecting wires?
    Give reason for your choice in each case.
    View Solution
  • 6
    What possible values of resultant resistance one can get by combining two resistances, one of value $2$ ohm and the other $6$ ohm?
    View Solution
  • 7
    What is the resistance between A and B in the figure given below?
    View Solution
  • 8
    Distinguish between resistance and resistivity.
    View Solution
  • 9
    You are given one hundred $1 \Omega $ resister. What is the smallest and largest resistance you can make in a circuit using these?
    View Solution
  • 10
    If the charge on an electron is $1.6 \times 10$ coulombs, how many electrons should pass through a conductor in $1$ second to constitute $1$ ampere current?
    View Solution