Question

solve x - 2y = 4,
if
x = √2
y = 4√2​

Answer 1

Answer

Correct option is

B

False

Given equation is

x−2y=4

2

−2(4

2

)=4

2

−8

2

=4,

−7

2

=4 but −7

2



=4

∴(

2

,4

2

) is not a solution.

Answer 2

Answer:

Half-Wave rectifier is an electronic circuit which converts only one-half of the AC cycle into pulsating DC. It utilizes only half of AC cycle for the conversion process. On the other hand, Full wave rectifier is an electronic circuit which converts entire cycle of AC into Pulsating DC