A student uses two compass needles to investigate the mag...
A student uses two compass needles to investigate the magnetic field around a bar magnet. Which of the following diagrams show the correct directions of the needles?
A
B
C
D
Correct answer is B
By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Also, they form closed lines.
The amount of heat needed to raise the temperature of 10kg of Copper by 1K is its ...
The S.I unit of moment of a force is ...
Boyle’s law may be Written as ...
Which of the following statements is applicable to a real image formed by a concave mirror? i. it...
Which of the following statements give the TRUE difference between evaporation and boiling? i. Ev...