Consider the three forces acting at O and in equilibrium ...
Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?
I. P\(_1\) cos \(\theta_1\) = p\(_1\) cos \(\theta_2\)
II. P\(_3\) = P\(_1\) cos \(\theta_4\) + P\(_2 cos_2\)
III. P\(_1 \sin \theta_1 = P_2 \sin \theta_2\)
I only
II only
III only
I, II and III only
Correct answer is C
No explanation has been provided for this answer.
In alternating current circuit at resonance, the angle of lead or lag is?...
In an A.C circuit, the ratio of r.m.s value to peak value of current is ...
A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is ...