Question : State the consequences that can lead to a short circuit ? OR A 14 - year old student is notable to see clearly the questions written on the blackboard placed at a distance of 5 m from him. (a) Name the defect of vision he is suffering from . (b) With the help of labelled ray diagrams show how this defect can be corrected. (c) Name the type of lens used to correct this defect .

Question : State the consequences that can lead to a short circuit ? O

1.	Question : State the consequences that can lead to a short circuit ? OR A 14 - year old student is notable to see clearly the questions written on the blackboard placed at a distance of 5 m from him. (a) Name the defect of vision he is suffering from . (b) With the help of labelled ray diagrams show how this defect can be corrected. (c) Name the type of lens used to correct this defect .
Answer» Solution :It occurs as a consequence of failure of electrical direct contact with neutral or earth wire. presence of external conducting material such as WATER which is introduced accidentally into the circuit. electrical APPLIANCES are foraced to operate when tis moving parts are jammed. connection of current carrying parts of electrical equipment.s comes in contact to ONE another due to human or natural cause Use of less rating wires. When this happens there is an excessive electric current which can damage the circuit and may also cause electrical FIRES. (a) Short - sightedness (MYOPIA). (b) (c) Concave lens.