Rekha goes to visit a science exhibition. She observes that a particip

1.	Rekha goes to visit a science exhibition. She observes that a participant grves charge to a capacitor continuously and the potential difference between its plates goes on increasing. She advises him not to supply charge to a capacitor continuously otherwise it will be discharged giving sparking.(a) According to you what Rekha ?(b) Why do we not supply continuously ?
Answer» (a) (i) Ability to take prompt decision. (ii) Presence of mind. (iii) Knowledge of subject matter. (b) When we supply charge to a capacitor continuously, the potential difference between its plates goes on increasing, consequently a stage will come when the electric field between the plates will exceed the dielectric strength of medium, puncturing the dielectric. Thus, it will break the dielectric into positive and negative charges and so the capacitor will be discharged showing sparking.

Rekha goes to visit a science exhibition. She observes that a participant grves charge to a capacitor continuously and the potential difference between its plates goes on increasing. She advises him not to supply charge to a capacitor continuously otherwise it will be discharged giving sparking.(a) According to you what Rekha ?(b) Why do we not supply continuously ?

Answer»

(a) (i) Ability to take prompt decision.

(ii) Presence of mind.

(iii) Knowledge of subject matter.

(b) When we supply charge to a capacitor continuously, the potential difference between its plates goes on increasing, consequently a stage will come when the electric field between the plates will exceed the dielectric strength of medium, puncturing the dielectric. Thus, it will break the dielectric into positive and negative charges and so the capacitor will be discharged showing sparking.

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