Three resistors are connected to a 12 V battery as shown in the figure given below:

i) What is the current through the 8 ohm resistor?
ii) What is the potential difference across the parallel combination of 6 ohm and 12 ohm resistor?
iii) What is the current through the 6 ohm resistor?

Two bulbs are marked 100 W, 220 V, and 60 W, 110 W. Calculate the ratio of their resistances.

i) What is the color code for the insulation on the earth wire

44.

i) Name a device which is commonly used to convert an electrical signal into a visual signal.

ii) The nucleus  emits an alpha particle and forms the nucleus Y. Represent this change in the form of an equation.

iii) What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?