14. In the network shown in Fig., each resistance is equal to \( 2 \Omega \). The resistance between the points \( A \) and \( B \) is \begin{tabular}{|c|c|c|c|} \hline\( A \) & lohm & (B) & \( 2 \mathrm{ohm} \) \\ \hline & 3ohm & D. & \( 4 \mathrm{ohm} \) \\ \hline \multicolumn{4}{|c|}{\begin{tabular}{l} 15. A 10-meter wire is bent to form a solenoid of \( 1 \mathrm{~m} \) length. The \\ resistance of solenoid will \end{tabular}} \\ \hline\( c \), & \begin{tabular}{l} Reduced by factor of 10 \\ Remain same \end{tabular} & \( \frac{B .}{D .} \) & \begin{tabular}{l} Increased by factor of 10 \\ cannot he predicted \end{tabular} \\ \hline \end{tabular}
Added by Ruben C.
Close
Step 1
Since all resistors are equal to 2 ohms, we can simplify the network by combining resistors in series and parallel. In a series circuit, the total resistance is the sum of the resistances of each component. In a parallel circuit, the total resistance can be found Show more…
Show all steps
Your feedback will help us improve your experience
Vivek Singh and 55 other Microeconomics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A potentiometer wire of length $100 \mathrm{~cm}$ has a resistance of $10 \Omega$. It is connected in series with resistance (shown in figure) and a cell of emf $2 \mathrm{~V}$ and negligible resistance. A source of emf $10 \mathrm{mV}$ is balanced against a length of $40 \mathrm{~cm}$ of potentiometer wire. What is the value of $R_{1}$ ? (a) $526.67 \Omega$ (b) $790 \Omega$ (c) $1580 \Omega$ (d) zero
A potentiometer wire of length $1 \mathrm{~m}$ and resistance $10 \Omega$ is connected in series with a cell of e.m.f $2 \mathrm{~V}$ with internal resistance $1 \Omega$ and a resistance box of a resistance $R$ if potential difference between ends of the wire is $1 \mathrm{~V}$ the value of $R$ is. (A) $4.5 \Omega$ (B) $9 \Omega$ (C) $15 \Omega$ (D) $20 \Omega$
In experiment of the potentiometer wire $\mathrm{AB}$ of length $100 \mathrm{~cm}$ has a resistance of $10 \Omega$. It is connected in series with a resistance $\mathrm{R}$ and a cell of emf 2 volts and of negligible internal resistance. A source emf $10 \mathrm{mV}$ is balanced against a length of $40 \mathrm{~cm}$ of the potentiometer wire. What is the value of the external resistance? (A) $900 \Omega$ (B) $820 \Omega$ (C) $790 \Omega$ (D) $670 \Omega$
Recommended Textbooks
Principles of Economics
Principles of Microeconomics for AP® Courses
Economics
Watch the video solution with this free unlock.
EMAIL
PASSWORD