question_answer

  Sonam wanted to use copper wire in place of a heater coil as it also had a high melting point. Monika reminded her an another property of the wire and told her what could be ideally used for the same Sonam agreed and the circuit was successfully completed,           On the basis of above passage, answer the following questions (a) Which property was reminded by  Monika about copper?                (b) Which material would have been suggested by Monika? (c) Which qualities of Monika would you appreciate? completed successfully, so it may be nichrome as suggested by Monika because nichrome has high resistivity, so more heat will be generated in it.                                                  (1) (c) Qualities of Monika to be appreciated are (i) Scientific temperament (ii) Convincing power (iii) Awareness                                                    (1)

Answer:

                  (a) Monika reminded the low resistivity property of copper. The reason behind her approach may be the saving of electricity. But as a heater coil, copper will not work, because due to its less resistance, amount of heat generated in it will be lesser.                        (1) (b) After suggestion of Monika, the circuit was completed successfully, so it may be nichrome as suggested by Monika because nichrome has high resistivity, so more heat will be generated in it.                                                  (1) (c) Qualities of Monika to be appreciated are (i) Scientific temperament (ii) Convincing power (iii) Awareness                                                    (1)