Please give right answers for the questions above...
No need of irrelevant answers....
Answers
Answer:
(a) North, South
(b) bar magnet, South
(c) turns, intensity of current, an iron
(d) North
(e) fission
(f) erect, virtual and same-sized
(g) biogas
Explanation:
(a) Magnetic field lines leave the North pole of a bar magnet and enter its South pole.
(b) The Earth's magnetic field is rather like that of a bar magnet with its South pole in the northern hemisphere.
(c) The magnetic effect of a coil can be increased by increasing the number of turns, increasing the intensity of current or inserting iron core.
(d) If a coil is viewed from one end and the current flows in an anti-clockwise direction, then this end is North pole.
(e) Splitting of a heavy nucleus into two lighter nuclei is called fission.
(f) The type of image formed by a plane mirror is erect, virtual and same-sized.
(g) The clean fuel which can be obtained from cow-dung is biogas.