Two bulbs are marked $60\, W , 220\, V$ and $100\, W$, $220\, V$. These are connected in parallel to $220\, V$ mains. Which one out of the two will glow brighter ?
What will happen to the current flowing through a conductor, if the potential difference is doubled ?
State the factors on which the resistance of a cylindrical conductor depends, How will resistance of a conductor change if it is stretched so that its length is doubled ?
What is the main principle involved in Voltaic cell?
There are two electric bulbs, $(i)$ marked $60\, W$, $220\, V$ and $(ii)$ marked $100 \,W , 220 \,V .$ Which one of them has higher resistance ?