A ($100\, W$, $200\, V$) bulb is connected to a $160\, V$ power supply. The power consumption would be ............. $W$

An electric heater of resistance $6 \,ohm$ is run for $10$ minutes on a $120\, volt$ line. The energy liberated in this period of time is

Two identical heaters rated $220\, volt$, $1000\, watt$ are placed in series with each other across $220 \,volt$ lines. If resistance do not change with temperature, then the combined power is ............. $watt$

Three resistors of $4\,\Omega ,6\,\Omega $ and $12\,\Omega $ are connected in parallel and the combination is connected in series with a $1.5\, V$ battery of $1\,\Omega $ internal resistance. The rate of Joule heating in the $4\,\Omega $ resistor is ................ $W$

The internal resistance of a primary cell is $4\, ohm$. It generates a current of $0.2\, amp$ in an external resistance of $21\, ohm$. The rate at which chemical energy is consumed in providing the current is .............. $J/s$

Two bulbs, one of $50\, watt$ and another of $25\, watt$ are connected in series to the mains. The ratio of the currents through them is