Tamil Nadu Board Solutions for Chapter: Electricity, Exercise 2: Evaluation

Electron flow is in the same direction to conventional current flow.

The fuse wire does not melt whenever there is overload in the wiring.

The representation of the electric current is $A$.

Water $˸$ Pipe $˸˸$ Electric current $˸$ _____(wire/insulator).

Copper $˸$ Conductor $˸˸$ Wood $˸$ _____.

Length $˸$ metre scale $˸˸$ Current $˸$ _____.

milliampere $˸$ microampere $˸˸$ ${10}^{-3} \mathrm{A}$ $˸$ ${10}^{-K} \mathrm{A}$. What is the value of $K$?

Study the three electric circuits below. Each of them has a glass rod ($G$), a steel rod ($S$), and a wooden rod ($W$). In which of the electric circuits would the bulb not light up.