20N, 45°E
20N, 45°W
10√2N, 45°W
10√2N, 45°E
Correct answer is D
From Pythagoras,
R2 = 102 + 102
= 100 + 100
= 200
therefore R2 = √200 = √2 x 100
= 10√2, in the direction 45°E
Calculate the amount of heat generated in an external load of resistance 8Ω if an alternating ...
Which of the following electromagnetic waves has the shortest wavelength? ...
In a series R-L-C circuit at resonance, impedance is---- ...
A solid weighs 10.00N in air, 6N when forcefully immersed in water, and 7.0N when fully im...
A quantity of water at 0 °C is heated to 30 °C. For each degree rise in temperature, its den...
The energy stored in a spring of stiffness constant k = 2000\(Nm^{-1}\) when extended 4cm is...
When cold water is poured on a can containing hot water, the can collapses because the? ...