Lightning is caused by the discharge of electrical charges in the rain bearing clouds. Cloudscarring charges are separated by a thin gap of air between them. When the quantity of chargeparticles in the clouds become very high the air gap between them loses its insulation and thecharges tend to flow through the air. This phenomenon is known as electric discharge. 3a Which of the following statements are correct?Statement I - Avoid using mobile phones if you are outside the house.Statement ll - lightning strike could destroy life and property.Statement lll - Electrical appliances like computers and TVs should be unplugged.i. l onlyii. l and lliii. ll and llliv. l, ll and lll
Question
Lightning is caused by the discharge of electrical charges in the rain bearing clouds. Cloudscarring charges are separated by a thin gap of air between them. When the quantity of chargeparticles in the clouds become very high the air gap between them loses its insulation and thecharges tend to flow through the air. This phenomenon is known as electric discharge. 3a Which of the following statements are correct?Statement I - Avoid using mobile phones if you are outside the house.Statement ll - lightning strike could destroy life and property.Statement lll - Electrical appliances like computers and TVs should be unplugged.i. l onlyii. l and lliii. ll and llliv. l, ll and lll
Solution 1
The correct answer is iv. l, ll and lll.
Statement I - It is advised to avoid using mobile phones if you are outside during a thunderstorm. This is because mobile phones, being electronic devices, can act as a conductor for lightning.
Statement II - Lightning strikes can indeed destroy life and property. They can cause fires and electrocution, leading to damage to property and loss of life.
Statement III - It is also recommended to unplug electrical appliances like computers and TVs during a thunderstorm. This is because a lightning strike can cause a surge of electricity through the power lines, which can damage electronic devices.
Solution 2
The correct answer is iv. l, ll and lll.
Statement I - It is advised to avoid using mobile phones if you are outside during a thunderstorm. This is because mobile phones, being electronic devices, can act as a conductor for lightning.
Statement II - Lightning strikes can indeed destroy life and property. They can cause fires and electrocution, leading to damage to property and loss of life.
Statement III - It is also recommended to unplug electrical appliances like computers and TVs during a thunderstorm. This is because a lightning strike can cause a surge of electricity through the power lines, which can damage electronic devices.
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