25W
50W
120W
125W
Correct answer is A
P = IVcosθ
= 5 x 10 x cos60
= 25W
Lenz's law of electromagnetic induction states that ...
A concave mirror forms a magnified and errect image only when the object is placed ...
An object is projected with a velocity of 100m-1 at an angle of 60° to the vertical. Calculate t...
Which of the following have the longest wavelengths? ...