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KCET 2019
MCQ (Single Correct Answer)
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-0
A toroid has 500 turns per meter length. If it carries a current of $$2 \mathrm{A}$$, the magnetic energy density inside the toroid is
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KCET 2019
MCQ (Single Correct Answer)
+1
-0
In a cyclotron a charged particle
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KCET 2019
MCQ (Single Correct Answer)
+1
-0
The number of turns in a coil of galvanometer is tripled, then
4
KCET 2019
MCQ (Single Correct Answer)
+1
-0
Coersivity of a magnet where the ferromagnet gets completely demagnetized is $$3 \times 10^3 \mathrm{~Am}^{-1}$$. The minimum current required to be passes in a solenoid having 1000 turns per metre, so that the magnet gets completely demagnetized when placed inside the solenoid is
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