Question

if phase difference between E and I is π/4 and f=50hz then calculate time difference

Answer 1

Phase difference ϕ =  π/4 radian

Frequency  f = 50 Hz

Time difference Δt = ϕ/(2πf)

                             = π/(4 x 2π x 50)

                             = 1/(400)

                             = 0.0025 s

                             = 2.5 ms

Answer 2

Answer:HOLA USER ✌

HERE'S YOUR ANSWER FRIEND,

GIVEN : QUESTION

✏ CALCULATE THE MASS OF A BODY WHOSE RELATIVE DENSITY IS 2 AND VOLUME IS 0.5 m³ ❓

ANSWER

✏ GIVEN : RELATIVE DENSITY OF A BODY = 2

AND

VOLUME OF THE BODY = 0.5m³

MASS = ❓

WE KNOW,

DENSITY = MASS/VOLUME

==> 2 = MASS/0.5m³

==> MASS = 2 X 0.5

==> MASS = 1 KG

SINCE, SI UNIT OF MASS IS KG.

HOPE IT HELPS YOU.

Explanation: