A. 14.6cm
B. 34.6cm
C. 16.7cm
D. 66.7cm
There are 5 tube-lights each of 40W in a house.These are used on an average for 5 hours per day.In addition ,there is an immersion heater of 1500W used on an average for 1 hour per day.The number of units of electricity are consumed in a month is
A galvanometer of resistance 20Ω is to be shunted so that only 1% of the current passes through it. Shunt connected is