Question

Please give right answers for the questions above...
No need of irrelevant answers.... ​

Answer 1

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.