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MOTION-ELECTROMAGNETISM-Exercise
- A hydrogen atom is a paramagnetic. A hydrogen molecule is –
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- The core of electromagnet is made of soft iron because a) the susc...
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- A permanent magnet –
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- The relative permeability of a substance X is slightly less than unity...
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- The variation of magnetic susceptibility (chi) with absolute temperatu...
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- A conducting loop is pulled with a constant velocity towards a region ...
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- A conducting loop of resistance R and radius r has its centre at the o...
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- A small conducting circular ring of area 2 mm2 is placed coplanerly wi...
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- A conducting square loop edge length a and resistance R is in a unifor...
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- A wire is in the form of a semicircle of radius r. One end is attached...
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- A circular coil of radius a and having N turns is placed at centre of ...
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- In the circuit shown in fig.. Time constant and steady state current w...
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- Through an induction coil of L = 0.2 H, an a.c. current of 2A is passe...
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- When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 v...
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- When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 v...
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- A coil having inductance and L and resistance R is connected to a batt...
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- Two circular, similar, coaxial loops carry equal currents in the same...
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- A solenoid of inductance 50 mH and resistance 10 Omega is connected ...
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- A conductor rod AB moves parallel to X-axis in a uniform magnetic fiel...
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- 5.5 × 10^(-4) magnetic flux lines are passing through a coil of resist...
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