Pradeep Paul, R Parthasarthy and, Basha Solutions for Chapter: Electricity, Exercise 8: EXERCISES (UNSOLVED)

Out of a long piece of nichrome or a short piece of nichrome which has more resistance?

Which is the best conductor of electricity, Iron or Mercury?

Are the lights in your house wired in series?

Find the current flowing through the conductor, if $1.6\times 10^{-19} \mathrm{C}$ charge flows through it in ${10}^{-10} \mathrm{s}$.

If $5 \mathrm{J}$ of work is done in moving $1 \mathrm{C}$ charge, then calculate the potential difference.

If a toaster of resistance $100$ $\mathrm{\Omega }$ is connected to $220 \mathrm{V}$, then calculate the current drawn by the toaster.

If an electric current of $2 \mathrm{A}$ passes through a coil of $10 \mathrm{\Omega }$ resistance for $10$ minutes, then calculate the amount of heat produced.

If an electric heater of $500 \mathrm{W}$ is used to heat water every-day for $2$ hours, then calculate the number of units of electrical energy consumed by it in $10$ days.