Which has a greater resistance$-$a $100$ $W$ bulb or a $60$ $W$ bulb?

If $1800\,C$ of charge passes through an electric bulb in $1$ hour, what is the current flowing through the bulb (in $A$)?

Five bulbs are connected in a parallel circuit. If the second bulb blows out,what happens?

$(a)$ Name an instrument that measures electric current in a circuit. Define the unit of electric current.
$(b)$ What do the following symbols mean in an electric circuit?
$(c)$ Draw a closed circuit diagram consisting of a $0.5\, m$ long nichrome wire $XY$,an ammeter,a voltmeter,four cells of $1.5\, V$ each,and a plug key.

Does an ammeter have a low or a high resistance?

$A$ wire is $1.0 \, m$ long,$0.2 \, mm$ in diameter and has a resistance of $10 \, \Omega$. Calculate the resistivity of its material.