30 ÷ 15 = ____

Compare (a) current sensitivity and (b) voltage sensitivity in the following moving coil galvanometers. Meter A : N = 30 A = 1.5 xx 10^(-3) m^2 B = 0.25 T R= 20 Ω Meter , B :N = 35 A=2 xx 10^-3 m^2 B=0.25 T R= 30 Ω You are given that the springs in the two meters have the same torsional constant .

A pump on the ground floor of a building can pump up water to fill a tank of volume 30 m^3in 15 min. If the tank is 40 m above the ground, how much electric power is consumed by the pump. The efficiency of the pump is 30%

Is it right to say that cos ( 60^(@) + 30 ^(@) ) = cos 60^(@) cos 30 ^(@) -sin 60^(@) sin 30 ^(@)

Median of a data , arranged in ascending order 7,10,15,x,y,27,30 is 17 and when one more observation 5 is added to the data, the median has become 18 . Find x and y.

Solve (sin 10^(@))^(tan x+tan 3x)=tan 15^(@)+tan 30^(@)+ tan 15^(@). Tan 30^(@), x in (0, pi] .

30 sec (2 - 15 x) tan (2 - 15 x)

The total surface area of the cuboid with dimension 20cmxx30cmxx15cm is . . . . .