Question 1 :
Assertion(A): The possibility of an electric bulb&#160;fusing is higher at the time of switching on and&#160;off.<br/>Reason(R): Inductive effects produce a large&#160;current at the time of switch-on and switch-off.&#160;<br/>

Question 2 :
Two coils A and B have mutual inductance $$2\times 10^{-2}$$ henry. If the current in the primary is $$i = 5\sin (10\pi t)$$ then the maximum value of e.m.f. induced in coil B is:

Question 3 :
The horizontal component of the earth's magnetic field at a place is $$3 \times 10 ^ { - 4 } T$$and the dip is $$\theta$$ = $$t a n ^ { - 1 }$$ (4/3). A metal rod of length 0. 25 m placed in the north-south position is moved at a constant speed of 10 cm/s towards the east. The e.m.f induced in the rod will be:

Question 4 :
When we move a conductor of length l with speed V perpendicular to the magnetic field B the motional emf induced in the conductor will be

Question 5 :
Whenever, current is changed in a coil, an induced e.m.f. is produced in the same coil. This property of the coil is due to<br/>

Question 7 :
Two sources of equal emf are connected to an external resistance R. The internal resistances of two sources are $$R_{ 1 }$$ and $$R_{ 2 }$$($$R_{ 2 }$$&gt;$$R_{ 1 }$$). If the potential difference across the source having internal resistance $$R_{ 2 }$$ is zero, then;

Question 8 :
Under what condition will the strength of current in a wire of resistance R be the same for connection is series and in parallel of n identical cells each of the internal resistance r? When

Question 11 :
Assertion(A): An inductor in a D.C. circuit opposes&#160;both a steady current and a changing current.Reason(R): Induced emf is generated only when&#160;the flux linked with the inductor remains&#160;unchanged.<br/>

Question 13 :
Foran inductorcoil $$L = 0.04H$$ then work done by source to establish a current of 5A in it is:-

Question 16 :
If $$0.1J$$ of energy is stored for the flow of current of $$0.2A$$ in an inductor, then its inductance value is:

Question 18 :
If coil is placed perpendicular to field lines then number of lines passing through coil are :