Name the three connecting wires used in a household circuit.

To study the dependence of current $\left(I\right)$ on the potential difference $\left(V\right)$ across a resistor, two students used the two set ups shown in figs (A) and (B) respectively. They kept the contact J in four different positions, marked (a), (b), (c) and (d) in the two figures.

For the two students, their ammeter and Voltmeter readings will be minimum when the contact J is in the position :

A student arranged an electric circuit as shown in figure:

He would observe :

Which circuits include lamps connected in series?

Consider the following circuits:

On plugging the key, the voltmeter / ammeter is likely to be damaged:

Electricity is a form of energy. Energy can be converted from one form to another. Fill in the blanks with words from the box.
(mechanical, heat, electrical, light)

When we run an electric grinder in the kitchen, electrical energy is converted into _____ energy.

Which circuits include lamps connected in parallel?