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Does color exist without light?
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How does an LED emit different colors without filters?

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How does a transformer transfer power without direct electrical connection?

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How does the color coding for wires differ in different countries?

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How does a quantum dot display achieve wide color gamut?

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How do you fish wires through walls without damaging the structure?

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How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil?

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How to calculate specific gravity without a hydrometer?

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Can I join ISRO without JEE?
Answer : Yes, you can join ISRO without appearing for JEE, but it depends on the role you are aiming for. While JEE is commonly required for admission to undergraduate engineering programs in IITs and other ... state-level exams or other entrance exams), you can still apply to ISRO for technical positions....

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How will the resistivity of a wire change if it is stretched to double its original length without loss of mass?

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Draw the phasor diagram of a practical transformer without load.

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How does light intensity vary with current in LEDs?

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