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Question 1 of 5
1. Question
4 pointsIn potentiometer experiment, null point is obtained at a particular point for a cell on potentiometer wire x cm long. If the length of the potentiometer wire is increased without changing the cell, the balancing length will (Driving source is not changed) [MHT CET 2016]
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Question 2 of 5
2. Question
4 pointsIn the circuit shown, the current in the 1Ω resistor is [JEE Main 2015]
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Question 3 of 5
3. Question
4 pointsA potentiometer wire of length 10 m is connected in series with a battery. The e.m.f. of a cell balances against 250 cm length of wire. If length of potentiometer wire is increased by 1 m, the new balancing length of wire will be [MH CET 2015]
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Question 4 of 5
4. Question
4 pointsTwo electric bulbs marked 25 W – 220 V and 100 W – 220 V are connected in series to a 440 V supply. Which of the bulbs will fuse? [AIEEE 2012]
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Question 5 of 5
5. Question
4 pointsA resistor ‘R’ and 2μF capacitor in series is connected through a switch to 200 V direct supply. Across the capacitor is a neon bulb that lights up at 120 V. Calculate the value of R to make the bulb light up 5 s after the switch has been closed. (log10 2.5 = 0.4) [AIEEE 2011]
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