Embibe Experts Solutions for Exercise 2: Assignment

A resistance of $\left(37\times {10}^2\right)\mathrm{\Omega }\pm 10\%$ can be represented by colour coding respectively as

The emf of a cell is $1.6 V.$ On connecting external $15\mathrm{\Omega }$ resistance across the cell, the terminal potential difference falls to $1.5 V.$ The internal resistance of the cell is

The resistance of the four arms $P, Q, R$ and $S$ in a Wheatstone's bridge are $2\mathrm{\Omega }, 4\mathrm{\Omega }, 4\mathrm{\Omega }$ and $8\mathrm{\Omega }$ respectively as shown in figure. Current through the galvanometer will be

$100 \mathrm{cm}$ of potentiometer wire balance the $e.m.f$ of a cell and $75 \mathrm{cm}$ wire required for balance the terminal voltage of the cell, when it is shunted by $6\mathrm{\Omega }$ resistor. The internal resistance of the cell is

The length $AB$ of slide wire bridge is $100 \mathrm{cm}$ long. Where should be free end of the galvanometer be connected on $AB$ so that galvanometer may show zero deflection?

The maximum _____ that can be drawn from a cell of emf $E$ and internal resistance $r$ is $\frac{E}{r}$.

Kirchhoff's junction rule is based on conservation of _____.

Meter bridge is based on _____.