Embibe Experts Solutions for Chapter: Current Electricity, Exercise 1: BITSAT 2017

The value of current $I$ as shown in the given circuit diagram is

When a capacitor is fully charged as shown in the following figure, then current drawn from the cell is

A carbon resistor of $\left(56\pm 5.6\right) \mathrm{k\Omega }$ is to be marked with rings of different colours for its identification. The colour code sequence will be

In the circuit given below, the value of resistance $X$, when the potential difference between the points $B$ and $D$ is zero, will be

In the given circuit, it is observed that the current $I$ is independent of the value of resistance $R_5$. Then, the resistance value must satisfy

The resistance of a wire at $20 °\mathrm{C}$ is $20 \mathrm{\Omega }$ and $500 °\mathrm{C}$ is $60 \mathrm{\Omega }$. At which temperature, its resistance will be $25 \mathrm{\Omega } ?$

In the circuit shown, the heat produced in $5 \mathrm{\Omega }$ resistor is $10 \mathrm{cal} {\mathrm{s}}^{-1}$. The heat produced per sec in $4 \mathrm{\Omega }$ resistor will be