Question 1 :
Which of the following correctly describes the magnetic field near a long straight wire?

Question 2 :
State TRUE or FALSE. The field at the centre of a long circular coil carrying current will be parallel straight lines.

Question 3 :
State TRUE or FALSE. An electric motor converts mechanical energy into electrical energy.

Question 4 :
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is held stationary inside coil?

Question 5 :
A positively charged particle (alpha particle) projected towards West is deflected towards North by a magnetic field. The direction of magnetic field is:

Question 6 :
A rectangular coil of copper wire is rotated in a magnetic field. The direction of induced current changes once in each

Question 7 :
The essential difference between an AC generator and a DC generator is that

Question 8 :
At the time of short circuit, the current in the circuit

Question 9 :
It is established that an electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving alpha particles?

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19cf7273b230584979b78.JPG ' /> In the above figure, AB is a current carrying conductor in the plane of the paper. What are the directions of magnetic fields produced by it at point P.

Question 11 :
A magnetic compass shows a deflection when placed near a current carrying wire. How will the deflection of the compass get affected if the current in the wire is increased ?

Question 12 :
Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of magnetic field outside the loop.

Question 14 :
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is pushed into the coil?

Question 15 :
Choose the incorrect statement from the following regarding magnetic lines of field

Question 16 :
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is held stationary inside coil?

Question 17 :
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is pushed into the coil?

Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19cf1273b230584979b71.png' /> In the above arrangement, a circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to

Question 19 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19cf6273b230584979b77.JPG ' /> In the above figure, AB is a current carrying conductor in the plane of the paper. What are the directions of magnetic fields produced by it at point Q.