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$\frac{1}{2}$
$2$
$\frac{1}{4}$
$4.$
Assertion : When charges are shared between any two bodies, no charge is really lost, but some loss of energy does occur.
Reason : Some energy disappears in the form of heat, sparking etc.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
The graph gives the magnitude B(t) of a uniform magnetic field that exists throughout a conducting loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop, greatest first

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(a) b > (d = e) < (a = c) |
(b) b > (d = e) > (a = c) |
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(c) b < d < e < c < a |
(d) b > (a = c) > (d = e) |
The radius of curvature of the path of the charged particle in a uniform magnetic field is directly proportional to
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(a) The charge on the particle |
(b) The momentum of the particle |
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(c) The energy of the particle |
(d) The intensity of the field |
Find out the value of current through 2Ω resistance for the given circuit
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(a) 5 A |
(b) 2 A |
(c) Zero |
(d) 4 A |
A 6μF capacitor is charged from 10 volts to 20 volts . Increase in energy will be
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(a) |
(b) 9 |
(c) 4.5 |
(d) 9 |