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Question 1 of 5
1. Question
4 pointsA galvanometer of resistance 50 Ω gives a full scale deflection for a current 5 × 10–4 A. The resistance that should be connected in series with the galvanometer to read 3 V is [Karnataka CET 2015]
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Question 2 of 5
2. Question
4 pointsSensitivity of a moving coil galvanometer can be increased by [MH CET 2015]
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Question 3 of 5
3. Question
4 pointsA range of galvanometer is ‘V’, when 50Ω resistance is connected in series. Its range gets doubled when 500Ω resistance is connected in series. Galvanometer resistance is [MH CET 2015]
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Question 4 of 5
4. Question
4 pointsA circular loop of radius 0.3 cm lies parallel to a much bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is [JEE MAIN 2013]
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Question 5 of 5
5. Question
4 pointsIn cyclotron, for a given magnet, radius of the semicircle traced by positive ion is directly proportional to
(v = velocity of positive ion) [MH CET 2014]Correct
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(A)
(B)
(C) v
(D)