Question 1 :
..................... energy is converted into ................. energy by an electric generator.

Question 2 :
If a straight wire carrying a current $i_{1}$ amp runs along the axis of a circular current carrying loop having current $i_{2}$ amp, then the force of interaction between the two current carrying conductors is

Question 4 :
What is the shape of a current-carrying conductorwhose magnetic field pattern resembles that of abar magnet?

Question 5 :
If the speed of rotation of armature coil is increased in an AC generator

Question 6 :
In cyclotron, for a given magnet, radius of the semicircle traced by positive ion is directly proportional to__________. (v=velocity of positron ion)<br/>

Question 8 :
Which of the following devices works on the principle ofelectromagnetic induction?

Question 13 :
A proton is projected horizontally eastward in a uniform magnetic field, which is horizontal and southward in direction. The proton will be deflected<br/>

Question 14 :
Which of the following statements can help&#160;you to determine the direction of induced current in Electromagnetic Induction?&#160;

Question 15 :
In the right-hand thumb rule, where does the thumb point to?

Question 17 :
When the plane of the rectangular coil is parallel to the directionof the magnetic field in a dynamo, then

Question 18 :
A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved, the new value of the magnetic field is<br>

Question 19 :
There will be no force between two current carrying wires if currents are

Question 20 :
What do you call the angle of inclination of the axis of the magnetic needle to the horizontal plane when suspended freely ?<br/>

Question 21 :
What is the resistance, under normal working conditions of a $240 V$ electric lamp rated at $60 W$?

Question 22 :
Generators uses the principle of ________ to push electrons through a wire.<br/>

Question 23 :
Assertion: Heater wire must have high resistance and high melting point. Reason: If resistance is high, the electric conductivity will be less.

Question 25 :
A filament bulb $(500\ W, 100\ V)$ is to be used in a $230\ V$ main supply. When a resistance $R$ is connected in series, it works perfectly and the bulb consumes $500\ W$. The value of $R$ is.

Question 26 :
Which of the following can't increase the voltage produced by&#160;the generator?

Question 27 :
Match the following:<br/><table class="wysiwyg-table"><tbody><tr><td><b>Section - A</b></td><td><b>Section - B</b></td></tr><tr><td>(1) Fuse</td><td>(P) Converts electric energy into mechanical energy</td></tr><tr><td>(2) Electric Generator</td><td>(Q) Heating effect of electric current</td></tr><tr><td>(3) Electric Motor</td><td>(R) Converts mechanical energy into electrical energy</td></tr></tbody></table>

Question 28 :
The voltage of domestic ac is $220\ V$. What does this represent?

Question 29 :
An electric kettle is rated $3 kW$, $250 V$. What is the current in kettle and&#160;whether this kettle can be used in a circuit which contains a $13 A$ fuse ?