When you rub a plastic rod against your hair several times and put it near some bits of paper, the pieces of papers are attracted towards it. What does this observation indicate:
The rod and the paper are oppositely charged
The rod acquires a positive charge
The rod and the paper have the same charges
The rod acquires a negative charge
The output of a two input NOR gate is 1 when:
A is 1 and B is 0
A is 0 and B is 1
Both a and b are 0
Both a and b are 1
The cathode ray oscilloscope consists of main parts:
Two
Three
Four
Five