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Questions and Answers
What is the significance of the ISI mark assigned by the Bureau of Indian Standards on products?
What is the significance of the ISI mark assigned by the Bureau of Indian Standards on products?
It is an assurance of conformity to the specifications given on the products
Why are LED bulbs preferred over incandescent bulbs, fluorescent tubes, and CFLs?
Why are LED bulbs preferred over incandescent bulbs, fluorescent tubes, and CFLs?
LED bulbs consume less electricity for producing a given intensity of light
What happens to the circuit when the switch is in the 'OFF' position?
What happens to the circuit when the switch is in the 'OFF' position?
The circuit is incomplete and considered open, with no current flowing.
What causes the filament of a bulb to glow?
What causes the filament of a bulb to glow?
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How does the wire in the bulb feel after the bulb has been glowing for a minute?
How does the wire in the bulb feel after the bulb has been glowing for a minute?
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Why does the bulb glow only when the switch in the circuit is in the 'ON' position?
Why does the bulb glow only when the switch in the circuit is in the 'ON' position?
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Can you provide examples of electric appliances that utilize the heating effect of electric current?
Can you provide examples of electric appliances that utilize the heating effect of electric current?
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What precaution is mentioned regarding handling a lighted electric bulb connected to the mains?
What precaution is mentioned regarding handling a lighted electric bulb connected to the mains?
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How is drawing a circuit diagram using symbols beneficial in representing an electric circuit?
How is drawing a circuit diagram using symbols beneficial in representing an electric circuit?
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