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CBSE COMPLEMENTARY MATERIAL-UNIT–III & UNIT–IV MAGNETIC EFFECTS OF CURRENT AND MAGNETISM & E.M.I. AND ALTERNATING CURRENT-SHORT ANSWER QUESTIONS (2 Marks)
- A galvanometer of resistance 120Omega gives full scale deflection for ...
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- A current loop is placed in a uniform magnetic field in the following ...
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- A current of 10A flows through a semicircular wire of radius 2 cm as s...
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- A proton an an alpha-particle, moving with the same velocity, enter a ...
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- Mention two properties of soft iron due to which it is preferred for m...
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- A magnetic dipole of magnetic moment M is kept in a magnetic field B. ...
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- (a) What happens if a bar magnet is cut into two pieces : (i) transver...
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- A steady current I flows along an infinitely long straight wire with c...
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- A circular coil of n turns and radius R carries a current I. It is unw...
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- A coil of N turns and radius R carries a current I. It is unwound and ...
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- At a place horizontal component of the earths magnetic field is B and ...
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- A galvanometer coil has a resistance G. 1% of the total current goes t...
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- Prove that magnetic moment of a hydrogen atom in its ground state is e...
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- Each of conductors shown in figure carries 2A of current into or out o...
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- What is the radius of the path of an electron (mass 9 xx 10^(-31) kg a...
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- Why is it necessary for voltmeter to have a higher resistance?
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- A DC ammeter cannot measure alternating current because
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- Define the term: magnetic dipole moment of a current loop. Write the e...
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- An ac source of rms voltage V is put across a series combination of an...
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- A bar magnet is falling with some acceleration ‘a’ along the vertical ...
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