Question Text
Question 2 :
Which of the following expressions are applicable to the moving coil galvanometer?
Question 3 :
A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current of 5 A is passed through this solenoid, what is the magnetic field inside the solenoid?
Question 4 :
The magnetic field lines inside the solenoid are in the form of
Question 5 :
A solenoid with a soft iron core is called a _____.
Question 7 :
A rectangular loop carrying a current $i$ is placed in a uniform magnetic field $B$. The area enclosed by the loop is $A$. If there are $n$ turns in the loop, the torque acting on the loop is given by<br/>
Question 8 :
A current I is passed through a solenoid of n turns per unit length. What is the magnetic filed inside the solenoid ? <br/>
Question 9 :
When a current carrying coil is placed in a uniform magnetic field of induction $B$, then a torque $\tau $ acts on it. If $I$ is the current, $n$ is the number of turns and $A$ is the face area of the coil and the normal to the coil makes an angle $\theta $ with $B$, Then<br/>
Question 10 :
The sensitivity of a moving coil galvanometer increases with the decrease in <br/>
Question 13 :
To make the magnetic field radial in a moving coil galvanometer:-
Question 14 :
The current that must flow through the coil of a galvanometer so as to produce a deflection of one division on its scale is called<br>
Question 15 :
<b></b>The magnetic field in such a toroid can be obtained using