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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
- In order to continue emission of electromagnetic waves from LC oscilla...
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- In LC oscillator circuit, at t = 0, ……
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- In L-C oscillator circuit ………..
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- In L-C oscillator circuit inductor ……….
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- At t = 0, time in L-C oscillator circuit …….
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- In R-C circuit when charge on the plate of the capacitor is increasing...
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- In an L-C oscillator circuit having a completely charged capacitor, wi...
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- Time taken from zero to maximum for an A.C. voltage of frequency 50Hz ...
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- Initially conditions of L-C oscillator circuit ……….
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- In R-C circuit when charge on the plate of the capacitor is increasing...
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- In oscillator circuit, presence of .........are necessary
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- Generally, core of transformer is made up of ……...
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- Which of following quantities remains constant in transformer ?
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- Working of a transformer is based upon principle of …...
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- If NP and NS are respectively no. of turns in primary and secondary co...
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- Transformation ratio of one transformer is 1:2. If Leclanche cell havi...
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- 240 A.C. mains supply is given to one transformer which draws 0.7 A fr...
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- If the coils of a transformer are made up of thick wire, then ...
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- Which device is used to increase or decrease A.C. voltage ?
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- A step up transformer has transformation ratio of 3: 2. What is the vo...
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